| LAE LAH LAI LAQ LAX LBA LBJ LBK LBV LBY LBZ LCU LDW LDX LEF LEH LEI LEK LFJ LFL LFN LFQ LFT LFU LFW LGF LGG LGV LGX LHA LHG LHK LHL LHT LHY LIC LID LIH LIJ LIK LIP LIQ LIR LIW LIY LJB LJD LJF LJL LJN LJQ LJT LJU LJW LJZ LLA LLE LLF LLG LLI LLJ LLO LLU LMA LMI LMO LMQ LMT LMU LMY LND LNI LNJ LNQ LOC LOD LOO LOP LOT LOU LOV LPB LPC LPF LPL LPM LPN LPW LQC LQD LQE LQI LQJ LQM LQQ LQV LQX LRB LRG LRI LRM LRN LRV LRW LSI LSU LSV LSZ LTG LTI LTM LTN LTU LUA LUD LUJ LUS LUV LUZ LVD LVI LVP LVR LVU LVW LVZ LWH LWI LWU LWX LWY LXC LXE LXH LXQ LXU LYA LYD LYK LYR LYS LYX LZA LZI LZL LZM LZT | Alpha Prefix not assigned or unallocated |
| LOS | Anthem Blue Cross Blue Shield of Colorado |
| LLQ LMN LZV LZX | Anthem Blue Cross Blue Shield of Connecticut |
| LCC LDO LDR LEX LGO LJA LOQ LQZ LRX LVT | Anthem Blue Cross Blue Shield of Georgia |
| LMK LOF | Anthem Blue Cross Blue Shield of Indiana |
| LAC LDQ LEA LGC LGE LGH LHO LKL LML LMV LXI LXJ LXL | Anthem Blue Cross Blue Shield of Kentucky |
| LCD LGD LGJ LGR LGU LGW LGZ LRF LUH LUO | Anthem Blue Cross Blue Shield of Missouri |
| LRY | Anthem Blue Cross Blue Shield of New Hampshire |
| LAN LBB LBD LBI LCZ LDL LDZ LGA LHR LKN LLN LLY LMB LMH LMZ LNC LON LPR LQO LQY LUK LUM LUX LWO LXW LYH LYJ | Anthem Blue Cross Blue Shield of Ohio |
| LAF LBU LCF LDJ LHB LHC LHF LIB LKY LLZ LMP LNF LOH LUN LVF LYT LYV | Anthem Blue Cross Blue Shield of Virginia |
| LBN LCM LEJ LEM LHZ LJR LLW LMJ LMW LNK LNR LNX LSO LSS LSY LTL LVA LZJ LZK LZN | Anthem Blue Cross Blue Shield of Wisconsin |
| LAV LCR LDB LDG LDU LEB LEW LFY LHV LKS LLT LME LMR LNL LNV LOE LPU LPZ LRU LSA LSE LTB LTC LUE LVX LYC LYY | Anthem Bluecross of California |
| LAY LDP LFA LGM LVS | Arkansas Blue Cross Blue Shield |
| LAL LCO LGB LGS LNO LNP LNS LNZ LQA LRO LWE LYU | Blue Cross Blue Shield of Alabama |
| LEZ LNT | Blue Cross Blue Shield of Arizona |
| LAA LAK LAR LCB LCH LDC LED LEG LEL LFB LFM LGP LGT LJC LJE LJS LJX LKQ LLB LLS LNB LOR LQR LQT LSB LSD LSJ LWJ LXR LZF LZW | Blue Cross Blue Shield of Illinois |
| LSR | Blue Cross Blue Shield of Kansas |
| LAU LFX LHN | Blue Cross Blue Shield of Kansas City |
| LEV LFP LLC LSP LXF LXS LYO LYP LZB | Blue Cross Blue Shield of Louisiana |
| LBL LBS LDV LER LGI LHI LIA LKA LKB LKR LQS LTH LZZ | Blue Cross Blue Shield of Massachusetts |
| LAB LDM LEC LEO LFI LIE LJO LNG LOJ LOW LPQ LQU LRP LRQ LRS LTR LUY LVM LWG LWQ LXP LXV LXY LYF LZC LZG LZP | Blue Cross Blue Shield of Michigan |
| LDI LFC LFE LJV LKJ LKM LNM LOA LOB LOL LRJ LRT LTK LTP LTZ LUG LUI LUL LWM LXA LXG LXX | Blue Cross Blue Shield of Minnesota |
| LCP LIM LIN LKV LMF LTO LZR | Blue Cross Blue Shield of Nebraska |
| LAJ | Blue Cross Blue Shield of New Mexico |
| LAG LCG LCI LCY LEY LFR LGQ LKZ LNN LST LTE LVE LWZ | Blue Cross Blue Shield of North Carolina |
| LBP LCT | Blue Cross Blue Shield of Oklahoma |
| LCX LIU LOG LQP LXO | Blue Cross Blue Shield of Rhode Island |
| LAS LAW LBG LBW LCE LDD LDF LEQ LGK LHH LJK LNH LSQ LTQ LWA LWD | Blue Cross Blue Shield of South Carolina |
| LBE LBF LCN LCQ LFG LKD LKE LKW LPX LQF LQG LRA LRD LRE LUU LWS LWT LYQ | Blue Cross Blue Shield of Tennessee |
| LBX LDE LEP LFK LFV LGY LHX LLL LPI LSX LYL | Blue Cross Blue Shield of Texas |
| LMM | Blue Cross Blue Shield of Vermont |
| LDK LET LKC LKT LQB LWC LXK LZQ | Blue Cross Blue Shield of Western New York |
| LIG | Bluecross of Idaho |
| LAP LAT LAZ LIO LIX LJJ LKI LLD LLV LOI LOX LSK LTA LTT LTW LTX LTY LXM LXN LYG LZO | Blueshield of California |
| LEN LJI LKK | Blueshield of Northeastern New York |
| LBC LLP LUB LUP LUQ LUT | Capital Bluecross of Pennsylvania |
| LAM LBH LFD LHQ LHS LIS LIV LIZ LJP LJY LKH LOY LPA LPD LPG LPH LPJ LQN LRK LVJ LVK LVQ LVV LYE | Carefirst Blue Cross Blue Shield(Maryland/District of Columbia/Northern Virginia) |
| LBT LCL LDT LHM LHW LKX LLX LMD LNU LPP LVC LWK LWL LWP LZE | Empire Blue Cross Blue Shield of New York |
| LJG LWW | Excellus Blue Cross Blue Shield of New York |
| LCJ LCK LCV LGN LKP LQW LSC LSF LSM LUC | Florida Blue |
| LAO LBM LCS LDN LGL LHJ LJM LLM LLR LNW LOK LOM LOZ LPE LPO LPV LPY LRL LTJ LTV LVH LVL LVO LWN LWV LXB LXD LYB | Highmark Blue Cross Blue Shield of Pennsylvania |
| LDY LES LKF LSH LSW LWR LZU | Horizon Blue Cross Blue Shield of New Jersey |
| LEU LFH LFO LFS LFZ LHE LHP LII LKO LLH LMS LPK LRC LUF LVY LYI LYW | Independence Bluecross of Philadelphia and Southeastern Pennsylvania |
| LBO LBR LEE LIT LKG LPS LQL LRR LUR LVN LXZ LZY | Premera Blue Cross Blue Shield of Alaska |
| LAD LDA LHU LMC LMG LPT LSL LTF LTS LVB LVG LYM | Regence Blue Cross Blue Shield(Oregon/Idaho/Utah/Washington) |
| LBQ LCA LCW LDH LDS LFF LHD LIF LIL LJH LKU LLK LMX LNA LNE LNY LQH LQK LRH LRZ LSG LSN LTD LUW LWB LWF LXT LYN LYZ LZD LZH LZS | Wellmark Blue Cross Blue Shield of South Dakota/Iowa |