BCBS Prefix – AAA to AZZ
| BCBS Company List | AAA to AZZ – BCBS Prefix List | Provider Phone Number |
|---|---|---|
| BCBS of Alabama | AAA BCBS Prefix | (205)220 6899 |
| BCBS of Michigan | AAB BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| BCBS of Illinois | AAC BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| BCBS of South Carolina | AAD BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| Anthem BCBS of Nevada | AAE BCBS Prefix | Nevada-Phone Number List |
| BCBS of Arizona | AAF BCBS Prefix | (800)232 2345 (800)446 8331(Medicare Advantage-MA) |
| Anthem BCBS of Georgia | AAG BCBS Prefix | (800)676 2583 |
| Blueshield of California | AAH BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| BCBS of Michigan | AAI BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Alpha Prefix not assigned or unallocated | AAJ BCBS Prefix | N/A |
| Anthem BCBS of Indiana | AAK BCBS Prefix | Indiana-Phone number List |
| Alpha Prefix not assigned or unallocated | AAL BCBS Prefix | N/A |
| BCBS of Alabama | AAM BCBS Prefix | (205)220 6899 |
| Empire BCBS of New York | AAN BCBS Prefix | (800)9922583 |
| Blueshield of California | AAO BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| BCBS of Tennessee | AAP BCBS Prefix | (800)924 7141 |
| Anthem BCBS of Kentucky | AAQ BCBS Prefix | Kentucky-Phone Number List |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AAR BCBS Prefix | Carefirst-Phone number full list |
| Anthem BCBS of Indiana | AAS BCBS Prefix | Indiana-Phone number List |
| Anthem Bluecross of California | AAT BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Anthem BCBS of Ohio | AAU BCBS Prefix | Ohio-Phone Number List |
| Anthem BCBS of Georgia | AAV BCBS Prefix | (800)676 2583 |
| Alpha Prefix not assigned or unallocated | AAW BCBS Prefix | N/A |
| BCBS of South Carolina | AAX BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| Bluecross of Idaho | AAY BCBS Prefix | (800)627 1188 FEPclaims:(800)627 6656 |
| Anthem BCBS of Indiana | AAZ BCBS Prefix | Indiana-Phone number List |
| BCBS of Illinois | ABA BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Arizona | ABB BCBS Prefix | (800)232 2345 (800)446 8331(Medicare Advantage-MA) |
| BCBS of Alabama | ABC BCBS Prefix | (205)220 6899 |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | ABD BCBS Prefix | (800)2530838 |
| BCBS of Minnesota | ABE BCBS Prefix | (800)2620820 (651)6625000 |
| Empire BCBS of New York | ABF BCBS Prefix | (800)9922583 |
| BCBS of Illinois | ABG BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Minnesota | ABH BCBS Prefix | (800)2620820 (651)6625000 |
| Highmark BCBS of Pennsylvania | ABI BCBS Prefix | Highmark-Phone number full list |
| BCBS of Minnesota | ABJ BCBS Prefix | (800)2620820 (651)6625000 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ABK BCBS Prefix | Carefirst-Phone number full list |
| BCBS of Illinois | ABL BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Alabama | ABM BCBS Prefix | (205)220 6899 |
| Anthem BCBS of Nevada | ABN BCBS Prefix | Nevada-Phone Number List |
| Anthem Bluecross of California | ABO BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of North Carolina | ABP BCBS Prefix | (800)214 4844 Bluemedicare HMO and PPO Claims:(888)296 9790 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ABQ BCBS Prefix | Carefirst-Phone number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ABR BCBS Prefix | Carefirst-Phone number full list |
| Wellmark BCBS of South Dakota/Iowa | ABS BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| Anthem BCBS of Connecticut | ABT BCBS Prefix | Connecticut-Contact Number List |
| BCBS of Minnesota | ABU BCBS Prefix | (800)2620820 (651)6625000 |
| BCBS of Tennessee | ABV BCBS Prefix | (800)924 7141 |
| Anthem BCBS of Colorado | ABW BCBS Prefix | (800)282-4548 Colorado-Phone Numbers full List |
| Blueshield of California | ABX BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ABY BCBS Prefix | Carefirst-Phone number full list |
| Anthem BCBS of Indiana | ABZ BCBS Prefix | Indiana-Phone number List |
| BCBS of Alabama | ACA BCBS Prefix | (205)220 6899 |
| Alpha Prefix not assigned or unallocated | ACB BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | ACC BCBS Prefix | N/A |
| Empire BCBS of New York | ACD BCBS Prefix | (800)9922583 |
| Highmark BCBS of Pennsylvania | ACE BCBS Prefix | Highmark-Phone number full list |
| Premera Bluecross of Alaska | ACF BCBS Prefix | (800)7224714 |
| BCBS of Tennessee | ACG BCBS Prefix | (800)924 7141 |
| Empire BCBS of New York | ACH BCBS Prefix | (800)9922583 |
| Anthem BCBS of Kentucky | ACI BCBS Prefix | Kentucky-Phone Number List |
| Anthem BCBS of New Hampshire | ACJ BCBS Prefix | New Hampshire-Phone Number List |
| Empire BCBS of New York | ACK BCBS Prefix | (800)9922583 |
| Bluecross of Idaho | ACL BCBS Prefix | (800)627 1188 FEPclaims:(800)627 6656 |
| BCBS of Massachusetts | ACM BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| BCBS of Texas | ACN BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ACO BCBS Prefix | Carefirst-Phone number full list |
| Alpha Prefix not assigned or unallocated | ACP BCBS Prefix | N/A |
| Florida Blue | ACQ BCBS Prefix | (800)955 5692 |
| Anthem Bluecross of California | ACR BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ACS BCBS Prefix | Carefirst-Phone number full list |
| BCBS of Illinois | ACT BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Blueshield of California | ACU BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Wellmark BCBS of South Dakota/Iowa | ACV BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| Anthem Bluecross of California | ACW BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of Illinois | ACX BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Alpha Prefix not assigned or unallocated | ACY BCBS Prefix | N/A |
| Anthem BCBS of Georgia | ACZ BCBS Prefix | (800)676 2583 |
| Anthem Bluecross of California | ADA BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Anthem BCBS of Missouri | ADB BCBS Prefix | (888)571 9054 Missouri-Phone number full list |
| BCBS of Illinois | ADC BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Indiana | ADD BCBS Prefix | Indiana-Phone number List |
| BCBS of Illinois | ADE BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Western New York | ADF BCBS Prefix | (800)950 0051(Highmarkclaims) (877)327 1395(GovernmentPrograms) FEPclaims(800)234 5082 |
| Anthem BCBS of Missouri | ADG BCBS Prefix | (888)571 9054 Missouri-Phone number full list |
| Anthem BCBS of Ohio | ADH BCBS Prefix | Ohio-Phone Number List |
| Anthem Bluecross of California | ADI BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of Nebraska | ADJ BCBS Prefix | (800)635-0579 (888)5052022(MedicareAdvantageclaims) (800)2235584(FEPclaims) |
| Anthem Bluecross of California | ADK BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Anthem BCBS of Indiana | ADL BCBS Prefix | Indiana-Phone number List |
| BCBS of Illinois | ADM BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Missouri | ADN BCBS Prefix | (888)571 9054 Missouri-Phone number full list |
| BCBS of Michigan | ADO BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Empire BCBS of New York | ADP BCBS Prefix | (800)9922583 |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | ADQ BCBS Prefix | Pennsylvania-Phone number full list |
| Wellmark BCBS of South Dakota/Iowa | ADR BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| Alpha Prefix not assigned or unallocated | ADS BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | ADT BCBS Prefix | N/A |
| Florida Blue | ADU BCBS Prefix | (800)955 5692 |
| BCBS of Illinois | ADV BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ADW BCBS Prefix | Carefirst-Phone number full list |
| Florida Explore-my-plan | ADX BCBS Prefix | (800)955 5692 |
| Alpha Prefix not assigned or unallocated | ADY BCBS Prefix | N/A |
| Anthem BCBS of Missouri | ADZ BCBS Prefix | (888)571 9054 Missouri-Phone number full list |
| BCBS of Texas | AEA BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Alpha Prefix not assigned or unallocated | AEB BCBS Prefix | N/A |
| Anthem BCBS of Kentucky | AEC BCBS Prefix | Kentucky-Phone Number List |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AED BCBS Prefix | Carefirst-Phone number full list |
| Arkansas BCBS | AEE BCBS Prefix | (800)238 8379 Arkansas-Phone Number Full List |
| BCBS of Illinois | AEF BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Ohio | AEG BCBS Prefix | Ohio-Phone Number List |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AEH BCBS Prefix | Carefirst-Phone number full list |
| Anthem BCBS of Virginia | AEI BCBS Prefix | (833)592 9956 |
| Alpha Prefix not assigned or unallocated | AEJ BCBS Prefix | N/A |
| Anthem BCBS of Ohio | AEK BCBS Prefix | Ohio-Phone Number List |
| Anthem Bluecross of California | AEL BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AEM BCBS Prefix | Carefirst-Phone number full list |
| Highmark BCBS of Pennsylvania | AEN BCBS Prefix | Highmark-Phone number full list |
| BCBS of Massachusetts | AEO BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| Wellmark BCBS of South Dakota/Iowa | AEP BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Michigan | AEQ BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| BCBS of Texas | AER BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| BCBS of Alabama | AES BCBS Prefix | (205)220 6899 |
| Anthem Bluecross of California | AET BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of Texas | AEU BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| BCBS of Texas | AEV BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Florida Blue | AEW BCBS Prefix | (800)955 5692 |
| BCBS of Texas | AEX BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Alpha Prefix not assigned or unallocated | AEY BCBS Prefix | N/A |
| BCBS of Illinois | AEZ BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Alpha Prefix not assigned or unallocated | AFA BCBS Prefix | N/A |
| BCBS of Kansas City | AFB BCBS Prefix | (800)432 3990 FEP:(800)432 0379 |
| Wellmark BCBS of South Dakota/Iowa | AFC BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of South Carolina | AFD BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| Blueshield of California | AFE BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Alpha Prefix not assigned or unallocated | AFF BCBS Prefix | N/A |
| BCBS of Kansas City | AFG BCBS Prefix | (800)432 3990 FEP:(800)432 0379 |
| Anthem BCBS of Ohio | AFH BCBS Prefix | Ohio-Phone Number List |
| BCBS of Rhode Island | AFI BCBS Prefix | (800)230 9050 |
| Anthem BCBS of Nevada | AFJ BCBS Prefix | Nevada-Phone Number List |
| BCBS of South Carolina | AFK BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| Alpha Prefix not assigned or unallocated | AFL BCBS Prefix | N/A |
| BCBS of Minnesota | AFM BCBS Prefix | (800)2620820 (651)6625000 |
| Anthem BCBS of Ohio | AFN BCBS Prefix | Ohio-Phone Number List |
| Arkansas BCBS | AFO BCBS Prefix | (800)238 8379 Arkansas-Phone Number Full List |
| Alpha Prefix not assigned or unallocated | AFP BCBS Prefix | N/A |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | AFQ BCBS Prefix | (800)2530838 |
| Anthem Bluecross of California | AFR BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Alpha Prefix not assigned or unallocated | AFS BCBS Prefix | N/A |
| Anthem BCBS of Virginia | AFT BCBS Prefix | (833)592 9956 |
| Anthem BCBS of Virginia | AFU BCBS Prefix | (833)592 9956 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AFV BCBS Prefix | Carefirst-Phone number full list |
| Alpha Prefix not assigned or unallocated | AFW BCBS Prefix | N/A |
| BCBS of Illinois | AFX BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Highmark BCBS of Pennsylvania | AFY BCBS Prefix | Highmark-Phone number full list |
| Anthem BCBS of Ohio | AFZ BCBS Prefix | Ohio-Phone Number List |
| Anthem BCBS of Georgia | AGA BCBS Prefix | (800)676 2583 |
| Excellus BCBS of New York | AGB BCBS Prefix | (800)920 8889 |
| Empire BCBS of New York | AGC BCBS Prefix | (800)9922583 |
| Anthem BCBS of Indiana | AGD BCBS Prefix | Indiana-Phone number List |
| Anthem BCBS of Ohio | AGE BCBS Prefix | Ohio-Phone Number List |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | AGF BCBS Prefix | Pennsylvania-Phone number full list |
| Anthem BCBS of Ohio | AGG BCBS Prefix | Ohio-Phone Number List |
| Anthem BCBS of Georgia | AGH BCBS Prefix | (800)676 2583 |
| Anthem BCBS of Nevada | AGI BCBS Prefix | Nevada-Phone Number List |
| Bluecross of Idaho | AGJ BCBS Prefix | (800)627 1188 FEPclaims:(800)627 6656 |
| BCBS of Minnesota | AGK BCBS Prefix | (800)2620820 (651)6625000 |
| Premera BCBS of Alaska | AGL BCBS Prefix | (800)7224714 |
| Bluecross of Idaho | AGM BCBS Prefix | (800)627 1188 FEPclaims:(800)627 6656 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AGN BCBS Prefix | Carefirst-Phone number full list |
| Alpha Prefix not assigned or unallocated | AGO BCBS Prefix | N/A |
| BCBS of Minnesota | AGP BCBS Prefix | (800)2620820 (651)6625000 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AGQ BCBS Prefix | Carefirst-Phone number full list |
| Anthem BCBS of Colorado | AGR BCBS Prefix | (800)282-4548 Colorado-Phone Numbers full List |
| Anthem Bluecross of California | AGS BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Blueshield of California | AGT BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AGU BCBS Prefix | Carefirst-Phone number full list |
| BCBS of South Carolina | AGV BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| Alpha Prefix not assigned or unallocated | AGW BCBS Prefix | N/A |
| Anthem BCBS of Virginia | AGX BCBS Prefix | (833)592 9956 |
| Anthem BCBS of Wisconsin | AGY BCBS Prefix | Wisconsin-Phone Number list |
| BCBS of Massachusetts | AGZ BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| BCBS of Illinois | AHA BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Ohio | AHB BCBS Prefix | Ohio-Phone Number List |
| Premera Bluecross of Alaska | AHC BCBS Prefix | (800)7224714 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AHD BCBS Prefix | Carefirst-Phone number full list |
| Empire BCBS of New York | AHE BCBS Prefix | (800)9922583 |
| Alpha Prefix not assigned or unallocated | AHF BCBS Prefix | N/A |
| BCBS of North Carolina | AHG BCBS Prefix | (800)214 4844 Bluemedicare HMO and PPO Claims:(888)296 9790 |
| Anthem BCBS of Wisconsin | AHH BCBS Prefix | Wisconsin-Phone Number list |
| Alpha Prefix not assigned or unallocated | AHI BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | AHJ BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | AHK BCBS Prefix | N/A |
| Florida Blue | AHL BCBS Prefix | (800)955 5692 |
| BCBS of Illinois | AHM BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AHN BCBS Prefix | Carefirst-Phone number full list |
| Alpha Prefix not assigned or unallocated | AHO BCBS Prefix | N/A |
| BCBS of Texas | AHP BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| BCBS of Illinois | AHQ BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AHR BCBS Prefix | Carefirst-Phone number full list |
| BCBS of Oklahoma | AHS BCBS Prefix | (800)496 5774 FEP:(800)722 3130 |
| Anthem BCBS of Wisconsin | AHT BCBS Prefix | Wisconsin-Phone Number list |
| Alpha Prefix not assigned or unallocated | AHU BCBS Prefix | N/A |
| Anthem BCBS of Indiana | AHV BCBS Prefix | Indiana-Phone number List |
| BCBS of Vermont | AHW BCBS Prefix | (800)2472583 |
| Anthem BCBS of Ohio | AHX BCBS Prefix | Ohio-Phone Number List |
| Alpha Prefix not assigned or unallocated | AHY BCBS Prefix | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AHZ BCBS Prefix | Carefirst-Phone number full list |
| BCBS of Texas | AIA BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| BCBS of Michigan | AIB BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Alpha Prefix not assigned or unallocated | AIC BCBS Prefix | N/A |
| Anthem BCBS of Ohio | AID BCBS Prefix | Ohio-Phone Number List |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AIE BCBS Prefix | Carefirst-Phone number full list |
| BCBS of Michigan | AIF BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| BCBS of Michigan | AIG BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Anthem BCBS of Wisconsin | AIH BCBS Prefix | Wisconsin-Phone Number list |
| BCBS of Louisiana | AII BCBS Prefix | (800)4952583 Bluecard:(800)8102583 |
| Anthem BCBS of New Hampshire | AIJ BCBS Prefix | New Hampshire-Phone Number List |
| BCBS of Michigan | AIK BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Anthem BCBS of Wisconsin | AIL BCBS Prefix | Wisconsin-Phone Number list |
| BCBS of Massachusetts | AIM BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| Alpha Prefix not assigned or unallocated | AIN BCBS Prefix | N/A |
| Anthem BCBS of Virginia | AIO BCBS Prefix | (833)592 9956 |
| Anthem BCBS of Nevada | AIP BCBS Prefix | Nevada-Phone Number List |
| Alpha Prefix not assigned or unallocated | AIQ BCBS Prefix | N/A |
| Capital Bluecross of Pennsylvania | AIR BCBS Prefix | (800)8748433 |
| BCBS of Michigan | AIS BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| BCBS of Michigan | AIT BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| BCBS of Louisiana | AIU BCBS Prefix | (800)4952583 Bluecard:(800)8102583 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AIV BCBS Prefix | Carefirst-Phone number full list |
| BCBS of Illinois | AIW BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| BCBS of South Carolina | AIX BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| Anthem BCBS of Indiana | AIY BCBS Prefix | Indiana-Phone number List |
| Florida Blue | AIZ BCBS Prefix | (800)955 5692 |
| BCBS of South Carolina | AJA BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| BCBS of Louisiana | AJB BCBS Prefix | (800)4952583 Bluecard:(800)8102583 |
| Blueshield of California | AJC BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Anthem BCBS of Ohio | AJD BCBS Prefix | Ohio-Phone Number List |
| Florida Blue | AJE BCBS Prefix | (800)955 5692 |
| BCBS of South Carolina | AJF BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| BCBS of Illinois | AJG BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| BCBS of South Carolina | AJH BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| Florida Blue | AJI BCBS Prefix | (800)955 5692 |
| Alpha Prefix not assigned or unallocated | AJJ BCBS Prefix | N/A |
| BCBS of Illinois | AJK BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Texas | AJL BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Alpha Prefix not assigned or unallocated | AJM BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | AJN BCBS Prefix | N/A |
| Anthem BCBS of Indiana | AJO BCBS Prefix | Indiana-Phone number List |
| Alpha Prefix not assigned or unallocated | AJP BCBS Prefix | N/A |
| Anthem Bluecross of California | AJQ BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of Michigan | AJR BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Anthem BCBS of Indiana | AJS BCBS Prefix | Indiana-Phone number List |
| BCBS of Michigan | AJT BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AJU BCBS Prefix | Carefirst-Phone number full list |
| Florida Blue | AJV BCBS Prefix | (800)955 5692 |
| Anthem BCBS of Kentucky | AJW BCBS Prefix | Kentucky-Phone Number List |
| Premera BCBS of Alaska | AJX BCBS Prefix | (800)7224714 |
| BCBS of South Carolina | AJY BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| Alpha Prefix not assigned or unallocated | AJZ BCBS Prefix | N/A |
| BCBS of Massachusetts | AKA BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| Anthem BCBS of Ohio | AKB BCBS Prefix | Ohio-Phone Number List |
| BCBS of South Carolina | AKC BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| BCBS of Minnesota | AKD BCBS Prefix | (800)2620820 (651)6625000 |
| Alpha Prefix not assigned or unallocated | AKE BCBS Prefix | N/A |
| Empire BCBS of New York | AKF BCBS Prefix | (800)9922583 |
| Alpha Prefix not assigned or unallocated | AKG BCBS Prefix | N/A |
| Anthem BCBS of Ohio | AKH BCBS Prefix | Ohio-Phone Number List |
| Anthem BCBS of Nevada | AKI BCBS Prefix | Nevada-Phone Number List |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | AKJ BCBS Prefix | (800)2530838 |
| Anthem BCBS of Ohio | AKK BCBS Prefix | Ohio-Phone Number List |
| Anthem BCBS of Ohio | AKL BCBS Prefix | Ohio-Phone Number List |
| BCBS of Michigan | AKM BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Anthem BCBS of Georgia | AKN BCBS Prefix | (800)676 2583 |
| Alpha Prefix not assigned or unallocated | AKO BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | AKP BCBS Prefix | N/A |
| Empire BCBS of New York | AKQ BCBS Prefix | (800)9922583 |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | AKR BCBS Prefix | (800)2530838 |
| Anthem Bluecross of California | AKS BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Anthem BCBS of Georgia | AKT BCBS Prefix | (800)676 2583 |
| Alpha Prefix not assigned or unallocated | AKU BCBS Prefix | N/A |
| Empire BCBS of New York | AKV BCBS Prefix | (800)9922583 |
| BCBS of South Carolina | AKW BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| Anthem BCBS of Kentucky | AKX BCBS Prefix | Kentucky-Phone Number List |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AKY BCBS Prefix | Carefirst-Phone number full list |
| Anthem BCBS of Georgia | AKZ BCBS Prefix | (800)676 2583 |
| Wellmark BCBS of South Dakota/Iowa | ALA BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ALB BCBS Prefix | Carefirst-Phone number full list |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | ALC BCBS Prefix | (800)2530838 |
| Alpha Prefix not assigned or unallocated | ALD BCBS Prefix | N/A |
| BCBS of Texas | ALE BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Wellmark BCBS of South Dakota/Iowa | ALF BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| Alpha Prefix not assigned or unallocated | ALG BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | ALH BCBS Prefix | N/A |
| Anthem BCBS of Indiana | ALI BCBS Prefix | Indiana-Phone number List |
| Alpha Prefix not assigned or unallocated | ALJ BCBS Prefix | N/A |
| Premera BCBS of Alaska | ALK BCBS Prefix | (800)7224714 |
| Anthem BCBS of Ohio | ALL BCBS Prefix | Ohio-Phone Number List |
| Anthem BCBS of Ohio | ALM BCBS Prefix | Ohio-Phone Number List |
| Highmark BCBS of Pennsylvania | ALN BCBS Prefix | Highmark-Phone number full list |
| Wellmark BCBS of South Dakota/Iowa | ALO BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| Anthem BCBS of Connecticut | ALP BCBS Prefix | Connecticut-Contact Number List |
| Alpha Prefix not assigned or unallocated | ALQ BCBS Prefix | N/A |
| Anthem BCBS of Connecticut | ALR BCBS Prefix | Connecticut-Contact Number List |
| BCBS of Michigan | ALS BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| BCBS of Texas | ALT BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Highmark BCBS of West Virginia | ALU BCBS Prefix | (800)5437822 (888)4594020 (Medicareadvantage claims) |
| Premera BCBS of Alaska | ALV BCBS Prefix | (800)7224714 |
| Bluecross of Idaho | ALW BCBS Prefix | (800)627 1188 FEPclaims:(800)627 6656 |
| Anthem BCBS of Ohio | ALX BCBS Prefix | Ohio-Phone Number List |
| Alpha Prefix not assigned or unallocated | ALY BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | ALZ BCBS Prefix | N/A |
| BCBS of Illinois | AMA BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Nevada | AMB BCBS Prefix | Nevada-Phone Number List |
| Alpha Prefix not assigned or unallocated | AMC BCBS Prefix | N/A |
| Anthem BCBS of Indiana | AMD BCBS Prefix | Indiana-Phone number List |
| Blueshield of California | AME BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Anthem BCBS of Wisconsin | AMF BCBS Prefix | Wisconsin-Phone Number list |
| BCBS of Illinois | AMG BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Nevada | AMH BCBS Prefix | Nevada-Phone Number List |
| Bluecross of Idaho | AMI BCBS Prefix | (800)627 1188 FEPclaims:(800)627 6656 |
| Anthem BCBS of Ohio | AMJ BCBS Prefix | Ohio-Phone Number List |
| Premera BCBS of Alaska | AMK BCBS Prefix | (800)7224714 |
| Wellmark BCBS of South Dakota/Iowa | AML BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| Highmark BCBS of Pennsylvania | AMM BCBS Prefix | Highmark-Phone number full list |
| Bluecross of Idaho | AMN BCBS Prefix | (800)627 1188 FEPclaims:(800)627 6656 |
| Alpha Prefix not assigned or unallocated | AMO BCBS Prefix | N/A |
| Blueshield of California | AMP BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Highmark BCBS of Pennsylvania | AMQ BCBS Prefix | Highmark-Phone number full list |
| BCBS of Texas | AMR BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| BCBS of Illinois | AMS BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Bluecross of Idaho | AMT BCBS Prefix | (800)627 1188 FEPclaims:(800)627 6656 |
| Anthem BCBS of Virginia | AMU BCBS Prefix | (833)592 9956 |
| Anthem BCBS of Wisconsin | AMV BCBS Prefix | Wisconsin-Phone Number list |
| Anthem BCBS of Wisconsin | AMW BCBS Prefix | Wisconsin-Phone Number list |
| BCBS of North Carolina | AMX BCBS Prefix | (800)214 4844 Bluemedicare HMO and PPO Claims:(888)296 9790 |
| Anthem BCBS of Kentucky | AMY BCBS Prefix | Kentucky-Phone Number List |
| Anthem BCBS of Wisconsin | AMZ BCBS Prefix | Wisconsin-Phone Number list |
| BCBS of Massachusetts | ANA BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| Anthem BCBS of Wisconsin | ANB BCBS Prefix | Wisconsin-Phone Number list |
| BCBS of Nebraska | ANC BCBS Prefix | (800)635-0579 (888)5052022(MedicareAdvantageclaims) (800)2235584(FEPclaims) |
| BCBS of Illinois | AND BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | ANE BCBS Prefix | (800)2530838 |
| Alpha Prefix not assigned or unallocated | ANF BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | ANG BCBS Prefix | N/A |
| Anthem BCBS of Kentucky | ANH BCBS Prefix | Kentucky-Phone Number List |
| Florida Blue | ANI BCBS Prefix | (800)955 5692 |
| Anthem Bluecross of California | ANJ BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Anthem BCBS of Wisconsin | ANK BCBS Prefix | Wisconsin-Phone Number list |
| Alpha Prefix not assigned or unallocated | ANL BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | ANM BCBS Prefix | N/A |
| Anthem BCBS of Ohio | ANN BCBS Prefix | Ohio-Phone Number List |
| BCBS of Illinois | ANO BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Nevada | ANP BCBS Prefix | Nevada-Phone Number List |
| Florida Blue | ANQ BCBS Prefix | (800)955 5692 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ANR BCBS Prefix | Carefirst-Phone number full list |
| Blueshield of California | ANS BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Anthem BCBS of Ohio | ANT BCBS Prefix | Ohio-Phone Number List |
| Anthem BCBS of Ohio | ANU BCBS Prefix | Ohio-Phone Number List |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ANV BCBS Prefix | Carefirst-Phone number full list |
| Anthem BCBS of Missouri | ANW BCBS Prefix | (888)571 9054 Missouri-Phone number full list |
| Anthem BCBS of Wisconsin | ANX BCBS Prefix | Wisconsin-Phone Number list |
| BCBS of Illinois | ANY BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Wellmark BCBS of South Dakota/Iowa | ANZ BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| Anthem BCBS of Ohio | AOA BCBS Prefix | Ohio-Phone Number List |
| BCBS of Michigan | AOB BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Anthem BCBS of Missouri | AOC BCBS Prefix | (888)571 9054 Missouri-Phone number full list |
| BCBS of Western New York | AOD BCBS Prefix | (800)950 0051(Highmarkclaims) (877)327 1395(GovernmentPrograms) FEPclaims(800)234 5082 |
| Anthem Bluecross of California | AOE BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Wellmark BCBS of South Dakota/Iowa | AOF BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Western New York | AOG BCBS Prefix | (800)950 0051(Highmarkclaims) (877)327 1395(GovernmentPrograms) FEPclaims(800)234 5082 |
| BCBS of Western New York | AOH BCBS Prefix | (800)950 0051(Highmarkclaims) (877)327 1395(GovernmentPrograms) FEPclaims(800)234 5082 |
| BCBS of Texas | AOI BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| BCBS of Western New York | AOJ BCBS Prefix | (800)950 0051(Highmarkclaims) (877)327 1395(GovernmentPrograms) FEPclaims(800)234 5082 |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | AOK BCBS Prefix | (800)2530838 |
| Alpha Prefix not assigned or unallocated | AOL BCBS Prefix | N/A |
| Highmark BCBS of Pennsylvania | AOM BCBS Prefix | Highmark-Phone number full list |
| BCBS of Illinois | AON BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Minnesota | AOO BCBS Prefix | (800)2620820 (651)6625000 |
| Blueshield of Northeastern New York | AOP BCBS Prefix | (800)444 4552 (800)429 9886(Bluecardclaims) |
| BCBS of Western New York | AOQ BCBS Prefix | (800)950 0051(Highmarkclaims) (877)327 1395(GovernmentPrograms) FEPclaims(800)234 5082 |
| BCBS of Western New York | AOR BCBS Prefix | (800)950 0051(Highmarkclaims) (877)327 1395(GovernmentPrograms) FEPclaims(800)234 5082 |
| BCBS of Tennessee | AOS BCBS Prefix | (800)924 7141 |
| Anthem BCBS of Missouri | AOT BCBS Prefix | (888)571 9054 Missouri-Phone number full list |
| Alpha Prefix not assigned or unallocated | AOU BCBS Prefix | N/A |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | AOV BCBS Prefix | Pennsylvania-Phone number full list |
| BCBS of Michigan | AOW BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| BCBS of North Carolina | AOX BCBS Prefix | (800)214 4844 Bluemedicare HMO and PPO Claims:(888)296 9790 |
| Bluecross of Idaho | AOY BCBS Prefix | (800)627 1188 FEPclaims:(800)627 6656 |
| Anthem Bluecross of California | AOZ BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Wellmark BCBS of South Dakota/Iowa | APA BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| Arkansas BCBS | APB BCBS Prefix | (800)238 8379 Arkansas-Phone Number Full List |
| Anthem BCBS of Ohio | APC BCBS Prefix | Ohio-Phone Number List |
| BCBS of Illinois | APD BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | APE BCBS Prefix | (800)2530838 |
| Alpha Prefix not assigned or unallocated | APF BCBS Prefix | N/A |
| Anthem BCBS of Connecticut | APG BCBS Prefix | Connecticut-Contact Number List |
| Anthem BCBS of Connecticut | APH BCBS Prefix | Connecticut-Contact Number List |
| BCBS of Western New York | API BCBS Prefix | (800)950 0051(Highmarkclaims) (877)327 1395(GovernmentPrograms) FEPclaims(800)234 5082 |
| BCBS of Massachusetts | APJ BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| BCBS of Arizona | APK BCBS Prefix | (800)232 2345 (800)446 8331(Medicare Advantage-MA) |
| Alpha Prefix not assigned or unallocated | APL BCBS Prefix | N/A |
| Highmark BCBS of Pennsylvania | APM BCBS Prefix | Highmark-Phone number full list |
| Anthem BCBS of Indiana | APN BCBS Prefix | Indiana-Phone number List |
| Anthem Bluecross of California | APO BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Wellmark BCBS of South Dakota/Iowa | APP BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| Anthem BCBS of Connecticut | APQ BCBS Prefix | Connecticut-Contact Number List |
| Anthem BCBS of Connecticut | APR BCBS Prefix | Connecticut-Contact Number List |
| BCBS of South Carolina | APS BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| Alpha Prefix not assigned or unallocated | APT BCBS Prefix | N/A |
| BCBS of Minnesota | APU BCBS Prefix | (800)2620820 (651)6625000 |
| BCBS of Illinois | APV BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Massachusetts | APW BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| Blueshield of California | APX BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Highmark BCBS of Pennsylvania | APY BCBS Prefix | Highmark-Phone number full list |
| Alpha Prefix not assigned or unallocated | APZ BCBS Prefix | N/A |
| Florida Blue | AQA BCBS Prefix | (800)955 5692 |
| BCBS of Rhode Island | AQB BCBS Prefix | (800)230 9050 |
| Anthem BCBS of Ohio | AQC BCBS Prefix | Ohio-Phone Number List |
| Anthem BCBS of Ohio | AQD BCBS Prefix | Ohio-Phone Number List |
| Bluecross of Idaho | AQE BCBS Prefix | (800)627 1188 FEPclaims:(800)627 6656 |
| Wellmark BCBS of South Dakota/Iowa | AQF BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| Anthem BCBS of Wisconsin | AQG BCBS Prefix | Wisconsin-Phone Number list |
| BCBS of Massachusetts | AQH BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| Anthem BCBS of Kentucky | AQI BCBS Prefix | Kentucky-Phone Number List |
| Premera BCBS of Alaska | AQJ BCBS Prefix | (800)7224714 |
| BCBS of Minnesota | AQK BCBS Prefix | (800)2620820 (651)6625000 |
| Highmark BCBS of Pennsylvania | AQL BCBS Prefix | Highmark-Phone number full list |
| Alpha Prefix not assigned or unallocated | AQM BCBS Prefix | N/A |
| Anthem BCBS of Georgia | AQN BCBS Prefix | (800)676 2583 |
| Alpha Prefix not assigned or unallocated | AQO BCBS Prefix | N/A |
| BCBS of South Carolina | AQP BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| BCBS of Michigan | AQQ BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Anthem BCBS of Georgia | AQR BCBS Prefix | (800)676 2583 |
| Blueshield of California | AQS BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Premera BCBS of Alaska | AQT BCBS Prefix | (800)7224714 |
| BCBS of Kansas City | AQU BCBS Prefix | (800)432 3990 FEP:(800)432 0379 |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | AQV BCBS Prefix | (800)2530838 |
| Alpha Prefix not assigned or unallocated | AQW BCBS Prefix | N/A |
| Empire BCBS of New York | AQX BCBS Prefix | (800)9922583 |
| BCBS of Alabama | AQY BCBS Prefix | (205)220 6899 |
| BCBS of Illinois | AQZ BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Western New York | ARA BCBS Prefix | (800)950 0051(Highmarkclaims) (877)327 1395(GovernmentPrograms) FEPclaims(800)234 5082 |
| BCBS of Texas | ARB BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Anthem Bluecross of California | ARC BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of New Mexico | ARD BCBS Prefix | (800)6930663 |
| Anthem BCBS of Georgia | ARE BCBS Prefix | (800)676 2583 |
| Alpha Prefix not assigned or unallocated | ARF BCBS Prefix | N/A |
| Highmark BCBS of Pennsylvania | ARG BCBS Prefix | Highmark-Phone number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ARH BCBS Prefix | Carefirst-Phone number full list |
| Alpha Prefix not assigned or unallocated | ARI BCBS Prefix | N/A |
| Anthem BCBS of Missouri | ARJ BCBS Prefix | (888)571 9054 Missouri-Phone number full list |
| Anthem Bluecross of California | ARK BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ARL BCBS Prefix | Carefirst-Phone number full list |
| Blueshield of California | ARM BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| BCBS of Alabama | ARN BCBS Prefix | (205)220 6899 |
| Alpha Prefix not assigned or unallocated | ARO BCBS Prefix | N/A |
| BCBS of Illinois | ARP BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Georgia | ARQ BCBS Prefix | (800)676 2583 |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | ARR BCBS Prefix | Pennsylvania-Phone number full list |
| BCBS of Texas | ARS BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| BCBS of Minnesota | ART BCBS Prefix | (800)2620820 (651)6625000 |
| BCBS of Texas | ARU BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Anthem Bluecross of California | ARV BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Anthem BCBS of Missouri | ARW BCBS Prefix | (888)571 9054 Missouri-Phone number full list |
| BCBS of Kansas | ARX BCBS Prefix | (800)432 3990 FEP:(800)432 0379 |
| Anthem BCBS of Connecticut | ARY BCBS Prefix | Connecticut-Contact Number List |
| Highmark BCBS of Pennsylvania | ARZ BCBS Prefix | Highmark-Phone number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ASA BCBS Prefix | Carefirst-Phone number full list |
| Excellus BCBS of New York | ASB BCBS Prefix | (800)920 8889 |
| Alpha Prefix not assigned or unallocated | ASC BCBS Prefix | N/A |
| BCBS of Illinois | ASD BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| BCBS of North Carolina | ASE BCBS Prefix | (800)214 4844 Bluemedicare HMO and PPO Claims:(888)296 9790 |
| BCBS of Illinois | ASF BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Excellus BCBS of New York | ASG BCBS Prefix | (800)920 8889 |
| Anthem BCBS of Kentucky | ASH BCBS Prefix | Kentucky-Phone Number List |
| BCBS of Kansas City | ASI BCBS Prefix | (800)432 3990 FEP:(800)432 0379 |
| Anthem BCBS of Kentucky | ASJ BCBS Prefix | Kentucky-Phone Number List |
| Wellmark BCBS of South Dakota/Iowa | ASK BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| Horizon BCBS of New Jersey | ASL BCBS Prefix | (800)6241110 New Jersey-Phone number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ASM BCBS Prefix | Carefirst-Phone number full list |
| Alpha Prefix not assigned or unallocated | ASN BCBS Prefix | N/A |
| Anthem BCBS of Indiana | ASO BCBS Prefix | Indiana-Phone number List |
| BCBS of Massachusetts | ASP BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| Anthem BCBS of Wisconsin | ASQ BCBS Prefix | Wisconsin-Phone Number list |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | ASR BCBS Prefix | Pennsylvania-Phone number full list |
| Alpha Prefix not assigned or unallocated | ASS BCBS Prefix | N/A |
| BCBS of Tennessee | AST BCBS Prefix | (800)924 7141 |
| Anthem BCBS of Georgia | ASU BCBS Prefix | (800)676 2583 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ASV BCBS Prefix | Carefirst-Phone number full list |
| Alpha Prefix not assigned or unallocated | ASW BCBS Prefix | N/A |
| Anthem BCBS of Georgia | ASX BCBS Prefix | (800)676 2583 |
| BCBS of Michigan | ASY BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Anthem BCBS of Ohio | ASZ BCBS Prefix | Ohio-Phone Number List |
| BCBS of Illinois | ATA BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Wellmark BCBS of South Dakota/Iowa | ATB BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Michigan | ATC BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | ATD BCBS Prefix | (800)2530838 |
| Empire BCBS of New York | ATE BCBS Prefix | (800)9922583 |
| Alpha Prefix not assigned or unallocated | ATF BCBS Prefix | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ATG BCBS Prefix | Carefirst-Phone number full list |
| BCBS of Massachusetts | ATH BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| BCBS of Alabama | ATI BCBS Prefix | (205)220 6899 |
| Anthem BCBS of Connecticut | ATJ BCBS Prefix | Connecticut-Contact Number List |
| Anthem BCBS of Connecticut | ATK BCBS Prefix | Connecticut-Contact Number List |
| Alpha Prefix not assigned or unallocated | ATL BCBS Prefix | N/A |
| Anthem BCBS of Maine | ATM BCBS Prefix | Maine-Phone number List |
| Anthem BCBS of Missouri | ATN BCBS Prefix | (888)571 9054 Missouri-Phone number full list |
| BCBS of Illinois | ATO BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Wellmark BCBS of South Dakota/Iowa | ATP BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| Blueshield of California | ATQ BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Anthem Bluecross of California | ATR BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of Illinois | ATS BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Alpha Prefix not assigned or unallocated | ATT BCBS Prefix | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | ATU BCBS Prefix | Carefirst-Phone number full list |
| BCBS of Illinois | ATV BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Virginia | ATW BCBS Prefix | (833)592 9956 |
| Alpha Prefix not assigned or unallocated | ATX BCBS Prefix | N/A |
| BCBS of South Carolina | ATY BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| BCBS of Illinois | ATZ BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | AUA BCBS Prefix | Pennsylvania-Phone number full list |
| BCBS of Michigan | AUB BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Alpha Prefix not assigned or unallocated | AUC BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | AUD BCBS Prefix | N/A |
| Anthem BCBS of Virginia | AUE BCBS Prefix | (833)592 9956 |
| Anthem BCBS of Georgia | AUF BCBS Prefix | (800)676 2583 |
| BCBS of Michigan | AUG BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Highmark BCBS of Pennsylvania | AUH BCBS Prefix | Highmark-Phone number full list |
| Alpha Prefix not assigned or unallocated | AUI BCBS Prefix | N/A |
| Anthem BCBS of Wisconsin | AUJ BCBS Prefix | Wisconsin-Phone Number list |
| Independence Bluecross of Philadelphia and Southeastern Pennsylvania | AUK BCBS Prefix | Pennsylvania-Phone number full list |
| Empire BCBS of New York | AUL BCBS Prefix | (800)9922583 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AUM BCBS Prefix | Carefirst-Phone number full list |
| Alpha Prefix not assigned or unallocated | AUN BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | AUO BCBS Prefix | N/A |
| BCBS of Michigan | AUP BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Anthem BCBS of Wisconsin | AUQ BCBS Prefix | Wisconsin-Phone Number list |
| Anthem BCBS of Wisconsin | AUR BCBS Prefix | Wisconsin-Phone Number list |
| Blueshield of California | AUS BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Florida Blue | AUT BCBS Prefix | (800)955 5692 |
| Alpha Prefix not assigned or unallocated | AUU BCBS Prefix | N/A |
| BCBS of Michigan | AUV BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| Highmark BCBS of Delaware | AUW BCBS Prefix | (800)3466262 |
| BCBS of Massachusetts | AUX BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| Wellmark BCBS of South Dakota/Iowa | AUY BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Texas | AUZ BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| BCBS of Minnesota | AVA BCBS Prefix | (800)2620820 (651)6625000 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AVB BCBS Prefix | Carefirst-Phone number full list |
| BCBS of South Carolina | AVC BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| BCBS of Minnesota | AVD BCBS Prefix | (800)2620820 (651)6625000 |
| Empire BCBS of New York | AVE BCBS Prefix | (800)9922583 |
| BCBS of Western New York | AVF BCBS Prefix | (800)950 0051(Highmarkclaims) (877)327 1395(GovernmentPrograms) FEPclaims(800)234 5082 |
| BCBS of New Mexico | AVG BCBS Prefix | (800)6930663 |
| Alpha Prefix not assigned or unallocated | AVH BCBS Prefix | N/A |
| Anthem BCBS of Virginia | AVI BCBS Prefix | (833)592 9956 |
| Alpha Prefix not assigned or unallocated | AVJ BCBS Prefix | N/A |
| Blueshield of California | AVK BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Premera BCBS of Alaska | AVL BCBS Prefix | (800)7224714 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AVM BCBS Prefix | Carefirst-Phone number full list |
| Premera BCBS of Alaska | AVN BCBS Prefix | (800)7224714 |
| Anthem BCBS of Virginia | AVO BCBS Prefix | (833)592 9956 |
| Anthem BCBS of Georgia | AVP BCBS Prefix | (800)676 2583 |
| Alpha Prefix not assigned or unallocated | AVQ BCBS Prefix | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AVR BCBS Prefix | Carefirst-Phone number full list |
| Alpha Prefix not assigned or unallocated | AVS BCBS Prefix | N/A |
| Anthem Bluecross of California | AVT BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Alpha Prefix not assigned or unallocated | AVU BCBS Prefix | N/A |
| Premera BCBS of Alaska | AVV BCBS Prefix | (800)7224714 |
| BCBS of Massachusetts | AVW BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| Empire BCBS of New York | AVX BCBS Prefix | (800)9922583 |
| BCBS of Texas | AVY BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Anthem BCBS of Connecticut | AVZ BCBS Prefix | Connecticut-Contact Number List |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | AWA BCBS Prefix | (800)2530838 |
| Premera BCBS of Alaska | AWB BCBS Prefix | (800)7224714 |
| Anthem BCBS of Connecticut | AWC BCBS Prefix | Connecticut-Contact Number List |
| BCBS of Minnesota | AWD BCBS Prefix | (800)2620820 (651)6625000 |
| Anthem BCBS of Connecticut | AWE BCBS Prefix | Connecticut-Contact Number List |
| BCBS of Illinois | AWF BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Alpha Prefix not assigned or unallocated | AWG BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | AWH BCBS Prefix | N/A |
| BCBS of Alabama | AWI BCBS Prefix | (205)220 6899 |
| Premera BCBS of Alaska | AWJ BCBS Prefix | (800)7224714 |
| Wellmark BCBS of South Dakota/Iowa | AWK BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| Anthem BCBS of Connecticut | AWL BCBS Prefix | Connecticut-Contact Number List |
| Highmark BCBS of Pennsylvania | AWM BCBS Prefix | Highmark-Phone number full list |
| BCBS of Illinois | AWN BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Illinois | AWO BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Anthem Bluecross of California | AWP BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Regence BCBS(Oregon/Idaho/Utah/Washington) | AWQ BCBS Prefix | (800)2530838 |
| Highmark BCBS of Pennsylvania | AWR BCBS Prefix | Highmark-Phone number full list |
| Wellmark BCBS of South Dakota/Iowa | AWS BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| Anthem BCBS of Connecticut | AWT BCBS Prefix | Connecticut-Contact Number List |
| Alpha Prefix not assigned or unallocated | AWU BCBS Prefix | N/A |
| Anthem BCBS of Connecticut | AWV BCBS Prefix | Connecticut-Contact Number List |
| BCBS of Alabama | AWW BCBS Prefix | (205)220 6899 |
| Anthem BCBS of Ohio | AWX BCBS Prefix | Ohio-Phone Number List |
| Anthem BCBS of Connecticut | AWY BCBS Prefix | Connecticut-Contact Number List |
| BCBS of Alabama | AWZ BCBS Prefix | (205)220 6899 |
| BCBS of Nebraska | AXA BCBS Prefix | (800)635-0579 (888)5052022(MedicareAdvantageclaims) (800)2235584(FEPclaims) |
| Highmark BCBS of Delaware | AXB BCBS Prefix | (800)3466262 |
| Arkansas BCBS | AXC BCBS Prefix | (800)238 8379 Arkansas-Phone Number Full List |
| BCBS of Massachusetts | AXD BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| Anthem BCBS of Indiana | AXE BCBS Prefix | Indiana-Phone number List |
| Anthem BCBS of Georgia | AXF BCBS Prefix | (800)676 2583 |
| Florida Blue | AXG BCBS Prefix | (800)955 5692 |
| Alpha Prefix not assigned or unallocated | AXH BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | AXI BCBS Prefix | N/A |
| Anthem BCBS of Nevada | AXJ BCBS Prefix | Nevada-Phone Number List |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AXK BCBS Prefix | Carefirst-Phone number full list |
| BCBS of Michigan | AXL BCBS Prefix | Professionalclaims:(800)344-8525 Hospitalclaims:(800)249-5103 Visionclaims:(800)482-4047 |
| BCBS of Illinois | AXM BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Alpha Prefix not assigned or unallocated | AXN BCBS Prefix | N/A |
| Blueshield of California | AXO BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| BCBS of Massachusetts | AXP BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| BCBS of Minnesota | AXQ BCBS Prefix | (800)2620820 (651)6625000 |
| BCBS of South Carolina | AXR BCBS Prefix | (800)868 2510 FEP:(888)930 2345 |
| BCBS of Massachusetts | AXS BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| BCBS of Illinois | AXT BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Georgia | AXU BCBS Prefix | (800)676 2583 |
| BCBS of Illinois | AXV BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AXW BCBS Prefix | Carefirst-Phone number full list |
| BCBS of Alabama | AXX BCBS Prefix | (205)220 6899 |
| Alpha Prefix not assigned or unallocated | AXY BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | AXZ BCBS Prefix | N/A |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AYA BCBS Prefix | Carefirst-Phone number full list |
| Blueshield of California | AYB BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| BCBS of Texas | AYC BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Florida Blue | AYD BCBS Prefix | (800)955 5692 |
| Wellmark BCBS of South Dakota/Iowa | AYE BCBS Prefix | (800)7743892 (800)5321537(FEPclaims) |
| BCBS of Illinois | AYF BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AYG BCBS Prefix | Carefirst-Phone number full list |
| BCBS of Massachusetts | AYH BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| BCBS of Tennessee | AYI BCBS Prefix | (800)924 7141 |
| Anthem Bluecross of California | AYJ BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Anthem Bluecross of California | AYK BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Alpha Prefix not assigned or unallocated | AYL BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | AYM BCBS Prefix | N/A |
| BCBS of Alabama | AYN BCBS Prefix | (205)220 6899 |
| Alpha Prefix not assigned or unallocated | AYO BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | AYP BCBS Prefix | N/A |
| BCBS of Massachusetts | AYQ BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| Highmark BCBS of Pennsylvania | AYR BCBS Prefix | Highmark-Phone number full list |
| Premera BCBS of Alaska | AYS BCBS Prefix | (800)7224714 |
| Anthem BCBS of Nevada | AYT BCBS Prefix | Nevada-Phone Number List |
| Anthem BCBS of Wisconsin | AYU BCBS Prefix | Wisconsin-Phone Number list |
| Alpha Prefix not assigned or unallocated | AYV BCBS Prefix | N/A |
| BCBS of Western New York | AYW BCBS Prefix | (800)950 0051(Highmarkclaims) (877)327 1395(GovernmentPrograms) FEPclaims(800)234 5082 |
| Anthem BCBS of Wisconsin | AYX BCBS Prefix | Wisconsin-Phone Number list |
| Blueshield of California | AYY BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| BCBS of North Carolina | AYZ BCBS Prefix | (800)214 4844 Bluemedicare HMO and PPO Claims:(888)296 9790 |
| BCBS of North Carolina | AZA BCBS Prefix | (800)214 4844 Bluemedicare HMO and PPO Claims:(888)296 9790 |
| Anthem BCBS of Connecticut | AZB BCBS Prefix | Connecticut-Contact Number List |
| Anthem BCBS of Colorado | AZC BCBS Prefix | (800)282-4548 Colorado-Phone Numbers full List |
| Alpha Prefix not assigned or unallocated | AZD BCBS Prefix | N/A |
| BCBS of Illinois | AZE BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| BCBS of Mississippi | AZF BCBS Prefix | (800)2575825 |
| Alpha Prefix not assigned or unallocated | AZG BCBS Prefix | N/A |
| BCBS of Texas | AZH BCBS Prefix | (800)451 0287 (877)774 8592(Bluecross MA-MedicareAdvantage) |
| Alpha Prefix not assigned or unallocated | AZI BCBS Prefix | N/A |
| Anthem BCBS of Connecticut | AZJ BCBS Prefix | Connecticut-Contact Number List |
| BCBS of Massachusetts | AZK BCBS Prefix | (800)4436657 BC-Bluecard:(800)6762583 |
| Anthem BCBS of Connecticut | AZL BCBS Prefix | Connecticut-Contact Number List |
| Alpha Prefix not assigned or unallocated | AZM BCBS Prefix | N/A |
| Excellus BCBS of New York | AZN BCBS Prefix | (800)920 8889 |
| Blueshield of California | AZO BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Alpha Prefix not assigned or unallocated | AZP BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | AZQ BCBS Prefix | N/A |
| Alpha Prefix not assigned or unallocated | AZR BCBS Prefix | N/A |
| Blueshield of California | AZS BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Blueshield of California | AZT BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Anthem Bluecross of California | AZU BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| Anthem Bluecross of California | AZV BCBS Prefix | (800)677 6669 California- Anthem Blue Cross Phone Number full list |
| BCBS of Illinois | AZW BCBS Prefix | (800)972 8088 Illinois-Phone Number full list |
| Anthem BCBS of Georgia | AZX BCBS Prefix | (800)676 2583 |
| Blueshield of California | AZY BCBS Prefix | (800)541 6652 (Blueshield) (800)468 9935 |
| Carefirst BCBS(Maryland/District of Columbia/Northern Virginia) | AZZ BCBS Prefix | Carefirst-Phone number full list |