Prefixes from FAA to FZZ
| FAA | WELLPOINT HEALTH NETWORKS-WISCONSIN |
| FAB | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| FAD | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FAF | CAREFIRST BCBS – WASHINGTON DC |
| FAH | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FAJ | HEALTHNOW NEW YORK INC – BUFFALO |
| FAK | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FAM | BLUE CROSS – IDAHO – BOISE |
| FAP | ANTHEM BCBS – VIRGINIA |
| FAQ | WELLPOINT HEALTH NETWORKS-WISCONSIN |
| FAR | ANTHEM BLUE CROSS – CALIFORNIA |
| FAS | ANTHEM BLUE CROSS – CALIFORNIA |
| FAW | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| FAY | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| FAZ | BCBS – MINNESOTA |
| FBC | WELLMARK OF IOWA/SOUTH DAKOTA |
| FBD | ANTHEM BCBS – OHIO |
| FBH | ANTHEM BLUE CROSS – CALIFORNIA |
| FBI | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| FBJ | ANTHEM BCBS – OHIO |
| FBP | BCBS OF MICHIGAN |
| FBR | BCBS – NORTH CAROLINA |
| FBS | BLUE CROSS AND BLUE SHIELD-FLORIDA |
| FBU | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FBV | EMPIRE BCBS – NEW YORK |
| FBW | BLUE CROSS – IDAHO – BOISE |
| FBX | ANTHEM BCBS – MISSOURI |
| FBY | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FBZ | BCBS OF MICHIGAN |
| FCA | ANTHEM BCBS – OHIO |
| FCB | EMPIRE BCBS – NEW YORK |
| FCD | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FCE | CAREFIRST BCBS – WASHINGTON DC |
| FCF | CAREFIRST BCBS – MARYLAND |
| FCG | CAREFIRST BCBS – WASHINGTON DC |
| FCJ | BLUE CROSS – IDAHO – BOISE |
| FCN | ANTHEM BCBS – MISSOURI |
| FCO | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FCP | CAPITAL BLUE CROSS – HARRISBURG PA |
| FCT | CAPITAL BLUE CROSS – HARRISBURG PA |
| FCU | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FCV | ANTHEM BCBS – OHIO |
| FCW | ANTHEM BCBS – MISSOURI |
| FCX | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| FCY | ANTHEM BCBS – OHIO |
| FDC | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FDF | HIGHMARK INC |
| FDH | HIGHMARK INC |
| FDI | BLUE SHIELD OF CALIFORNIA |
| FDL | BCBS – SOUTH CAROLINA |
| FDM | HIGHMARK INC |
| FDN | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FDO | BCBS – NORTH CAROLINA |
| FDU | ANTHEM BCBS – OHIO |
| FDV | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FDW | ANTHEM BCBS – OHIO |
| FDY | ANTHEM BCBS – OHIO |
| FED | CAREFIRST BCBS – MARYLAND |
| FEE | BLUE CROSS AND BLUE SHIELD-FLORIDA |
| FEG | BLUE SHIELD OF CALIFORNIA |
| FEI | REGENCE BCBS – OREGON |
| FEK | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| FEM | HIGHMARK INC |
| FEN | ANTHEM BCBS – OHIO |
| FEP | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FEQ | CAREFIRST BCBS – MARYLAND |
| FER | HIGHMARK INC |
| FES | CAPITAL BLUE CROSS – HARRISBURG PA |
| FET | BCBS OF MICHIGAN |
| FEU | ANTHEM BCBS – OHIO |
| FEW | BLUE SHIELD OF CALIFORNIA |
| FEX | BLUE SHIELD OF CALIFORNIA |
| FEY | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| FEZ | ANTHEM BCBS – OHIO |
| FFA | ANTHEM BLUE CROSS – CALIFORNIA |
| FFC | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| FFD | ANTHEM BLUE CROSS – CALIFORNIA |
| FFE | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| FFH | ANTHEM BCBS – OHIO |
| FFJ | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| FFK | BCBS – SOUTH CAROLINA |
| FFM | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| FFR | HIGHMARK INC |
| FFS | ANTHEM BLUE CROSS – CALIFORNIA |
| FFT | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FGC | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FGD | ANTHEM BCBS – OHIO |
| FGE | BCBS – SOUTH CAROLINA |
| FGF | BCBS – MINNESOTA |
| FGI | ANTHEM BCBS – OHIO |
| FGJ | ANTHEM BCBS – OHIO |
| FGK | ANTHEM BCBS – OHIO |
| FGL | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| FGM | ANTHEM BCBS – OHIO |
| FGP | BCBS OF MICHIGAN |
| FGQ | BCBS – SOUTH CAROLINA |
| FGS | BCBS OF MICHIGAN |
| FGW | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| FGX | HEALTHNOW NEW YORK INC – ALBANY |
| FHA | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FHB | HIGHMARK INC |
| FHC | BCBS OF MICHIGAN |
| FHD | BLUE CROSS AND BLUE SHIELD-FLORIDA |
| FHF | CAREFIRST BCBS – MARYLAND |
| FHH | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FHI | BCBS OF MICHIGAN |
| FHJ | BLUE CROSS AND BLUE SHIELD-FLORIDA |
| FHL | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FHM | ANTHEM BCBS – OHIO |
| FHN | BCBS OF MICHIGAN |
| FHP | ANTHEM BCBS – VIRGINIA |
| FHQ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FHT | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FHU | PREMERA BLUE CROSS – SEATTLE WA |
| FHW | BLUE CROSS AND BLUE SHIELD-FLORIDA |
| FHY | ANTHEM BLUE CROSS – CALIFORNIA |
| FIA | WELLPOINT HEALTH NETWORKS-WISCONSIN |
| FIC | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| FID | BLUE SHIELD OF CALIFORNIA |
| FIF | HIGHMARK INC |
| FIH | WELLPOINT HEALTH NETWORKS-WISCONSIN |
| FII | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| FIL | ANTHEM BCBS – OHIO |
| FIN | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| FIP | BCBS OF MICHIGAN |
| FIQ | BCBS OF MICHIGAN |
| FIU | BLUE CROSS AND BLUE SHIELD-FLORIDA |
| FIY | WELLPOINT HEALTH NETWORKS-WISCONSIN |
| FJB | REGENCE BCBS – UTAH |
| FJC | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FJC | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FJJ | ANTHEM BCBS – OHIO |
| FJO | BLUE SHIELD OF CALIFORNIA |
| FJR | HIGHMARK INC |
| FJT | BLUE SHIELD OF CALIFORNIA |
| FJU | ANTHEM BCBS – OHIO |
| FKC | ANTHEM BCBS – OHIO |
| FKM | HIGHMARK INC |
| FKN | HIGHMARK INC |
| FKR | ANTHEM BLUE CROSS – CALIFORNIA |
| FLB | COMPREHENSIVE CARE SERVICES INC-MN |
| FLD | WELLMARK OF IOWA/SOUTH DAKOTA |
| FLE | COMPREHENSIVE CARE SERVICES INC-MN |
| FLH | ANTHEM BCBS – OHIO |
| FLJ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FLK | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FLN | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FLO | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FLQ | BCBS – SOUTH CAROLINA |
| FLR | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FLV | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| FLX | WELLMARK OF IOWA/SOUTH DAKOTA |
| FLY | BCBS – KANSAS – TOPEKA |
| FMA | BCBS OF MICHIGAN |
| FMB | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FMC | ANTHEM BCBS – OHIO |
| FMC | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FME | BLUE CROSS – IDAHO – BOISE |
| FMG | BCBS – MINNESOTA |
| FMJ | BCBS – NORTH CAROLINA |
| FMK | BCBS – SOUTH CAROLINA |
| FMN | ANTHEM BCBS – MISSOURI |
| FMO | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| FMU | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FMW | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FNE | ANTHEM BCBS – OHIO |
| FNG | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FNJ | WELLMARK OF IOWA/SOUTH DAKOTA |
| FNK | ANTHEM BCBS – OHIO |
| FNS | ANTHEM BLUE CROSS – CALIFORNIA |
| FNU | BCBS OF MICHIGAN |
| FNV | BLUE SHIELD OF CALIFORNIA |
| FNW | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| FNZ | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FOA | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FOB | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FOF | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FOM | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| FON | BLUE CROSS AND BLUE SHIELD-GEORGIA |
| FOR | ANTHEM BCBS – OHIO |
| FOX | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FOY | BLUE CROSS AND BLUE SHIELD-OKLAHOMA |
| FOZ | BLUE CROSS AND BLUE SHIELD-OKLAHOMA |
| FPB | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| FPD | ANTHEM BLUE CROSS – CALIFORNIA |
| FPE | BCBS – SOUTH CAROLINA |
| FPF | ANTHEM BLUE CROSS – CALIFORNIA |
| FPG | WELLPOINT HEALTH NETWORKS-VIRGINIA |
| FPH | EMPIRE BCBS – NEW YORK |
| FPI | ANTHEM BLUE CROSS – CALIFORNIA |
| FPK | ANTHEM BCBS – OHIO |
| FPL | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FPO | BLUE SHIELD OF CALIFORNIA |
| FPP | HEALTHNOW NEW YORK INC – BUFFALO |
| FPQ | EMPIRE BCBS – NEW YORK |
| FPR | HIGHMARK INC |
| FPS | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| FPT | BCBS – NORTH CAROLINA |
| FPU | CAREFIRST BCBS – MARYLAND |
| FPV | BLUE SHIELD OF CALIFORNIA |
| FPY | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FPZ | ANTHEM BLUE CROSS – CALIFORNIA |
| FQA | BLUE SHIELD OF CALIFORNIA |
| FQE | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FQG | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FQH | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FQL | ANTHEM BCBS – OHIO |
| FQM | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FQR | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FQT | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| FRB | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FRD | ANTHEM BLUE CROSS – CALIFORNIA |
| FRE | EXCELLUS BCBS – ROCHESTER – NY |
| FRF | CAREFIRST BCBS – WASHINGTON DC |
| FRH | ANTHEM BCBS – OHIO |
| FRI | ANTHEM BCBS – OHIO |
| FRK | ANTHEM BCBS – MISSOURI |
| FRO | EXCELLUS BCBS – ROCHESTER – NY |
| FRQ | BLUE SHIELD OF CALIFORNIA |
| FRR | ANTHEM BCBS – OHIO |
| FRS | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FRT | ANTHEM BLUE CROSS – CALIFORNIA |
| FRV | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| FRY | BLUE SHIELD OF CALIFORNIA |
| FRZ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FSA | ANTHEM BCBS – VIRGINIA |
| FSC | INDEPENDENCE BLUE CROSS |
| FSE | ANTHEM BCBS – OHIO |
| FSH | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FSJ | BLUE CROSS AND BLUE SHIELD-ARIZONA |
| FSK | ANTHEM BCBS – OHIO |
| FSL | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FSN | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FSO | ANTHEM BCBS – OHIO |
| FSP | BCBS OF MICHIGAN |
| FSQ | ANTHEM BCBS – OHIO |
| FSR | BCBS OF MICHIGAN |
| FSS | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| FST | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FSU | ANTHEM BLUE CROSS – CALIFORNIA |
| FTC | BLUE CROSS AND BLUE SHIELD-OKLAHOMA |
| FTF | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FTI | CAREFIRST BCBS – MARYLAND |
| FTJ | ANTHEM BCBS – OHIO |
| FTK | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FTN | EMPIRE BCBS – NEW YORK |
| FTO | BLUE SHIELD OF CALIFORNIA |
| FTP | EMPIRE BCBS – NEW YORK |
| FTQ | ANTHEM BCBS – OHIO |
| FTU | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FTV | BLUE CROSS – IDAHO – BOISE |
| FTW | BLUE SHIELD OF CALIFORNIA |
| FTX | EMPIRE BCBS – NEW YORK |
| FTY | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FTZ | ANTHEM BCBS – OHIO |
| FUA | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| FUB | BCBS – NORTH CAROLINA |
| FUG | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| FUH | HIGHMARK INC |
| FUJ | EMPIRE BCBS – NEW YORK |
| FUL | ANTHEM BCBS – MISSOURI |
| FUM | WELLMARK OF IOWA/SOUTH DAKOTA |
| FUW | ANTHEM BLUE CROSS – CALIFORNIA |
| FUZ | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FVG | ANTHEM BLUE CROSS – CALIFORNIA |
| FVH | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FVJ | EMPIRE BCBS – NEW YORK |
| FVL | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FVR | ANTHEM BLUE CROSS – CALIFORNIA |
| FVT | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FVU | BLUE CROSS AND BLUE SHIELD OF TEXAS |
| FVV | BCBS OF MICHIGAN |
| FVW | ANTHEM BLUE CROSS – CALIFORNIA |
| FVX | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FWA | EMPIRE BCBS – NEW YORK |
| FWB | EMPIRE BCBS – NEW YORK |
| FWE | EMPIRE BCBS – NEW YORK |
| FWF | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FWS | WELLMARK OF IOWA/SOUTH DAKOTA |
| FWT | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| FWW | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FWY | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FXC | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FXD | CAREFIRST BCBS – WASHINGTON DC |
| FXF | ANTHEM BLUE CROSS – CALIFORNIA |
| FXG | HIGHMARK INC |
| FXK | BCBS – SOUTH CAROLINA |
| FXM | HIGHMARK INC |
| FXP | ANTHEM BCBS – OHIO |
| FXS | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FXU | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FXV | CAREFIRST BCBS – WASHINGTON DC |
| FYA | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FYD | ANTHEM BCBS – OHIO |
| FYI | BLUE CROSS AND BLUE SHIELD-ALABAMA |
| FYM | HIGHMARK INC |
| FYR | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FYS | ANTHEM BCBS – CONNECTICUT |
| FYT | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FZA | BCBS – SOUTH CAROLINA |
| FZB | BLUE CROSS – IDAHO – BOISE |
| FZC | WELLMARK OF IOWA/SOUTH DAKOTA |
| FZD | BCBS OF MICHIGAN |
| FZE | ANTHEM BLUE CROSS – CALIFORNIA |
| FZF | BLUE CROSS – IDAHO – BOISE |
| FZH | EMPIRE BCBS – NEW YORK |
| FZL | BLUE CROSS AND BLUE SHIELD-FLORIDA |
| FZM | BLUE CROSS BLUE SHIELD OF MICHIGAN |
| FZN | CAPITAL BLUE CROSS – HARRISBURG PA |
| FZQ | CAPITAL BLUE CROSS – HARRISBURG PA |
| FZS | ANTHEM BCBS – CONNECTICUT |
| FZT | BLUE CROSS AND BLUE SHIELD-ILLINOIS |
| FZY | BCBS – NORTH CAROLINA |
| FZZ | WELLMARK OF IOWA/SOUTH DAKOTA |
