BCBS Alpha Prefix List from GAA to GZZ updated (2022)

BCBS Alpha Prefix List of “G”-series Blue Cross Blue Shield insurance Companies – Statewise
GAA Highmark BCBS
GAB BCBS  Massachusetts
GAC BCBS  Illinois
GAD Blue Shield  California
GAE Anthem Blue Cross  California
GAF BCBS  Illinois
GAG BCBS  Texas
GAH Excellus BCBS  New York
GAI BCBS  Michigan
GAJ Wellmark BCBS
GAK Not assigned prefix
GAL BCBS  South Carolina
GAM BCBS  Illinois
GAN Anthem
GAO Not assigned prefix
GAP Not assigned prefix
GAQ Anthem
GAR Anthem BCBS  Virginia
GAS BCBS  Arkansas Blue Advantage
GAT BCBS  Alabama
GAV Not assigned prefix
GAX BCBS  Illinois
GAY Anthem Central Region (OH, IN, KY)
GAZ Not assigned prefix
GBA BCBS  Montana
GBB Anthem Blue Cross  California
GBC Wellmark BCBS
GBD BCBS  Rhose Island
GBE BCBS  Michigan
GBF Not assigned prefix
GBG BCBS  Michigan
GBH BCBS  Illinois
GBI Not assigned prefix
GBJ Highmark BCBS
GBK Blue Shield  California
GBN Highmark BCBS
GBO Not assigned prefix
GBP Not assigned prefix
GBQ Anthem Central Region (OH, IN, KY)
GBR Anthem Central Region (OH, IN, KY)
GBS BCBS  Minnesota
GBT Not assigned prefix
GBU Anthem Blue Cross  California
GBV Not assigned prefix
GBX Not assigned prefix
GBY Carefirst BCBS  Maryland
GBZ BCBS  South Carolina
GCA BCBS  Alabama
GCB BCBS  Texas
GCC Carefirst BCBS  Maryland
GCD Anthem Blue Cross  California
GCE Carefirst Administrators
GCF Anthem Blue Cross  California
GCG Blue Shield  California
GCH Capital Blue Cross
GCI Not assigned prefix
GCJ Anthem Central Region (OH, IN, KY)
GCK BCBS  Michigan
GCL BCBS  South Carolina
GCM Highmark BCBS
GCN Anthem BCBS  Virginia
GCO Capital Blue Cross
GCP Not assigned prefix
GCQ Anthem Central Region (OH, IN, KY)
GCR Wellmark BCBS
GCS BCBS  Minnesota
GCT Anthem Blue Cross  California
GCU Anthem Central Region (OH, IN, KY)
GCV Not assigned prefix
GCW Wellmark BCBS
GCX BCBS  Alabama
GCY Independence Blue Cross
GCZ BCBS  Illinois
GDA BCBS  Western New York
GDB Anthem Blue Cross  California
GDC Not assigned prefix
GDD Anthem Blue Cross  California
GDE Anthem
GDF Premera Blue Cross
GDH Not assigned prefix
GDI Not assigned prefix
GDJ Not assigned prefix
GDK Not assigned prefix
GDL BCBS  Michigan
GDM Highmark BCBS
GDN BCBS  Michigan
GDO Wellmark BCBS
GDP Not assigned prefix
GDQ Anthem Central Region (OH, IN, KY)
GDR BCBS  Minnesota
GDS Not assigned prefix
GDT Not assigned prefix
GDU Not assigned prefix
GDV Anthem Central Region (OH, IN, KY)
GDW Wellmark BCBS
GDY BCBS  Western New York
GDZ Not assigned prefix
GEA Independence Blue Cross
GEB Highmark BCBS
GEC BCBS  Alabama
GED Not assigned prefix
GEE Blue Shield  California
GEF Anthem Blue Cross  California
GEG Not assigned prefix
GEH Not assigned prefix
GEI Not assigned prefix
GEJ BCBS  Arkansas Blue Advantage
GEK Not assigned prefix
GEL Not assigned prefix
GEM Carefirst BCBS  Maryland
GEN BCBS  Alabama
GEO Anthem Blue Cross  California
GEP BCBS  Alabama
GEQ BCBS  Georgia
GES Anthem Blue Cross  California
GET Wellmark BCBS
GEU Not assigned prefix
GEV Anthem BCBS  Virginia
GEW Not assigned prefix
GEX BCBS  Alabama
GEY Not assigned prefix
GEZ BCBS  Minnesota
GFA Anthem
GFB Anthem Blue Cross  California
GFC BCBS  South Carolina
GFD Capital Blue Cross
GFE Anthem Central Region (OH, IN, KY)
GFF Anthem Blue Cross  California
GFG Not assigned prefix
GFH Anthem BCBS  Nevada
GFI Carefirst BCBS  Maryland
GFJ Not assigned prefix
GFK Not assigned prefix
GFL BCBS  Illinois
GFM Anthem BCBS  Virginia
GFN Anthem Blue Cross  California
GFP BCBS  Michigan
GFR Not assigned prefix
GFT Premera Blue Cross
GFU Premera Blue Cross
GFV Carefirst BCBS  Maryland
GFW Not assigned prefix
GFX Not assigned prefix
GFY Not assigned prefix
GFZ Anthem Central Region (OH, IN, KY)
GGB Blue Shield  California
GGC BCBS  Georgia
GGD Not assigned prefix
GGE Premera Blue Cross
GGF Not assigned prefix
GGG BCBS  Georgia
GGH Wellmark BCBS
GGI Not assigned prefix
GGJ BCBS  Illinois
GGK Wellmark BCBS
GGL Not assigned prefix
GGM Highmark BCBS
GGN Empire BCBS  New York
GGO BCBS  Michigan
GGP BCBS  Minnesota
GGQ Anthem Blue Cross  California
GGR Not assigned prefix
GGS Anthem Blue Cross  California
GGT Not assigned prefix
GGU BCBS  Florida
GGV Not assigned prefix
GGW BCBS  Georgia
GGX Not assigned prefix
GGZ Not assigned prefix
GHA Anthem Central Region (OH, IN, KY)
GHB BCBS  Michigan
GHC Anthem Central Region (OH, IN, KY)
GHE Regence Blue Shield  Washington
GHF Highmark BCBS
GHG Not assigned prefix
GHH Anthem
GHI Not assigned prefix
GHJ BCBS  Minnesota
GHK BCBS  South Carolina
GHL BCBS  Tennessee
GHM Not assigned prefix
GHN BCBS  Illinois
GHO Not assigned prefix
GHP BCBS  Michigan
GHQ BCBS  Western New York
GHR BCBS  Massachusetts
GHS Excellus BCBS  New York
GHT Anthem
GHU BCBS  Arizona
GHV Not assigned prefix
GHW Carefirst BCBS  Maryland
GHX BCBS  Illinois
GHY Wellmark BCBS
GHZ Not assigned prefix
GIA Not assigned prefix
GIB Not assigned prefix
GIC Anthem Blue Cross  California
GID BCBS  Alabama
GIE Anthem Blue Cross  California
GIF BCBS  Western New York
GIG BCBS  Louisiana
GIH BCBS  Michigan
GIJ BCBS  Michigan
GIK BCBS  Western New York
GIL Anthem
GIM BCBS  Michigan
GIN Anthem
GIQ BCBS  Michigan
GIR Highmark BCBS
GIS BCBS  Alabama
GIT Not assigned prefix
GIU BCBS  Nebraska
GIV BCBS  Massachusetts
GIW BCBS  Western New York
GIX Not assigned prefix
GIY Anthem Blue Cross  California
GIZ Anthem Blue Cross  California
GJA Blue Shield  California
GJB Anthem Central Region (OH, IN, KY)
GJC Not assigned prefix
GJD Not assigned prefix
GJE BCBS  South Carolina
GJF Independence Blue Cross
GJG BCBS  Alabama
GJH BCBS  Nebraska
GJJ Independence Blue Cross
GJK Carefirst BCBS  Maryland
GJL Highmark BCBS
GJM Empire BCBS  New York
GJN Not assigned prefix
GJO Not assigned prefix
GJP Not assigned prefix
GJQ Not assigned prefix
GJR Blue Shield  California
GJS Empire BCBS  New York
GJT Not assigned prefix
GJU Not assigned prefix
GJV BCBS  South Carolina
GJW Horizon BCBS  New Jersey
GJX Not assigned prefix
GJY Not assigned prefix
GJZ Not assigned prefix
GKB Not assigned prefix
GKC BCBS  Georgia
GKD BCBS  Alabama
GKF BCBS  Kansas City
GKG BCBS  Minnesota
GKH BCBS  Georgia
GKI Not assigned prefix
GKJ Not assigned prefix
GKK Not assigned prefix
GKL Wellmark BCBS
GKM Highmark BCBS
GKN BCBS  Alabama
GKQ BCBS  Minnesota
GKR BCBS  Minnesota
GKS BCBS  Minnesota
GKU BCBS  Georgia
GKV Independence Blue Cross
GKW Wellmark BCBS
GKX Not assigned prefix
GKY Anthem Central Region (OH, IN, KY)
GKZ Regence Blue Cross Blue Shield  Utah
GLA BCBS  South Carolina
GLB Anthem Blue Cross  California
GLC BCBS  Michigan
GLD BCBS  Alabama
GLE Not assigned prefix
GLF Carefirst Administrators
GLG BCBS  Michigan
GLJ BCBS  Georgia
GLK BCBS  Arizona
GLL BCBS  Georgia
GLM Anthem Blue Cross  California
GLN Anthem Blue Cross  California
GLP Blue Shield  California
GLQ Not assigned prefix
GLR BCBS  Minnesota
GLS Anthem Blue Cross  California
GLT BCBS  Michigan
GLU Not assigned prefix
GLV Not assigned prefix
GLW BCBS  Illinois
GLX Anthem Central Region (OH, IN, KY)
GLY Not assigned prefix
GLZ Not assigned prefix
GMA Not assigned prefix
GMB BCBS  Illinois
GMC BCBS  Michigan
GME BCBS  Massachusetts
GMF Blue Cross  Idaho
GMG Anthem Blue Cross  California
GMH BCBS  Michigan
GMI BCBS  Minnesota
GMJ BCBS  Michigan
GMK BCBS  Illinois
GML BCBS  Minnesota
GMM Not assigned prefix
GMN BCBS  South Carolina
GMO Not assigned prefix
GMP Not assigned prefix
GMQ BCBS  Michigan
GMR Anthem Blue Cross  California
GMS BCBS  Illinois
GMU BCBS  Michigan
GMV Not assigned prefix
GMW Anthem
GMX Blue Cross  Idaho
GMY Blue Cross  Idaho
GMZ Not assigned prefix
GNA Wellmark BCBS
GNB Anthem Blue Cross  California
GNC Not assigned prefix
GND Not assigned prefix
GNE Not assigned prefix
GNF BCBS  Oklahoma
GNG Carefirst BCBS  Maryland
GNH Not assigned prefix
GNJ Not assigned prefix
GNK Not assigned prefix
GNL Carefirst BCBS  Maryland
GNM Not assigned prefix
GNN Not assigned prefix
GNO Not assigned prefix
GNQ Blue Cross  Idaho
GNR BCBS  Illinois
GNS BCBS  South Carolina
GNT Anthem Blue Cross  California
GNU Wellmark BCBS
GNV BCBS  Illinois
GNW BCBS  South Carolina
GNX BCBS  Minnesota
GNY BCBS  Michigan
GNZ Blue Cross  Idaho
GOA BCBS  Michigan
GOB Not assigned prefix
GOC BCBS  Massachusetts
GOE Regence BCBS  Utah
GOG Not assigned prefix
GOH Not assigned prefix
GOI Wellmark BCBS
GOM Carefirst BCBS  Maryland
GON Not assigned prefix
GOR Not assigned prefix
GOS Wellmark BCBS
GOT Not assigned prefix
GOU Premera Blue Cross
GOV Not assigned prefix
GOX Wellmark BCBS
GOY BCBS  Massachusetts
GOZ Anthem Central Region (OH, IN, KY)
GPA BCBS  Illinois
GPB BCBS  Michigan
GPC BCBS  Florida
GPD Not assigned prefix
GPE Blue Shield  California
GPF BCBS  Nebraska
GPG Blue Shield  California
GPH BCBS  Illinois
GPI Not assigned prefix
GPJ Not assigned prefix
GPK Wellmark BCBS
GPL BCBS  Massachusetts
GPM Anthem
GPN Anthem
GPO Not assigned prefix
GPP Not assigned prefix
GPQ Anthem Blue Cross  California
GPR Empire BCBS  New York
GPS BCBS  Kansas City
GPT BCBS  Alabama
GPU Not assigned prefix
GPV Not assigned prefix
GPW Anthem
GPX Not assigned prefix
GQA Not assigned prefix
GQB Not assigned prefix
GQC Not assigned prefix
GQD Not assigned prefix
GQE Anthem BCBS  Virginia
GQF Anthem Blue Cross  California
GQG BCBS  South Carolina
GQH Not assigned prefix
GQJ Premera Blue Cross
GQK Not assigned prefix
GQL Not assigned prefix
GQM Not assigned prefix
GQN Premera Blue Cross
GQQ Not assigned prefix
GQR Not assigned prefix
GQS Not assigned prefix
GQT Not assigned prefix
GQU Anthem Blue Cross  California
GQV Anthem Blue Cross  California
GQW Highmark BCBS
GQX Not assigned prefix
GQY Not assigned prefix
GQZ Anthem Central Region (OH, IN, KY)
GRA Anthem Blue Cross  California
GRB Anthem Blue Cross  California
GRC BCBS  Minnesota
GRE Not assigned prefix
GRF BCBS  Illinois
GRG Not assigned prefix
GRI BCBS  Tennessee
GRJ BCBS  Alabama
GRK BCBS  Alabama
GRL Anthem BCBS  Colorado
GRM Wellmark BCBS
GRN BCBS  Illinois
GRO BCBS  Nebraska
GRP BCBS  Minnesota
GRQ BCBS  Tennessee
GRR Highmark BCBS
GRS BCBS  Massachusetts
GRT Anthem
GRU Not assigned prefix
GRV BCBS  Michigan
GRW Not assigned prefix
GRX Wellmark BCBS
GRY Not assigned prefix
GRZ Not assigned prefix
GSA BCBS  Texas
GSB Not assigned prefix
GSD BCBS  South Carolina
GSE BCBS  Western New York
GSF BCBS  Alabama
GSG Anthem Blue Cross  California
GSH Anthem Central Region (OH, IN, KY)
GSI Carefirst BCBS  Maryland
GSJ Anthem Central Region (OH, IN, KY)
GSK Not assigned prefix
GSL Not assigned prefix
GSM Highmark BCBS
GSN Independence Blue Cross
GSO Carefirst Administrators
GSP Anthem Blue Cross  California
GSQ Blue Cross  Northeast Pennsylvania
GSR Not assigned prefix
GSS BCBS  South Carolina
GST Not assigned prefix
GSU Blue Shield  California
GSV Anthem Central Region (OH, IN, KY)
GSW BCBS  Alabama
GSX Anthem
GSY Not assigned prefix
GSZ Capital Blue Cross
GTA Carefirst Administrators
GTB Anthem Blue Cross  California
GTC Not assigned prefix
GTD Blue Cross  Idaho
GTE BCBS  Massachusetts
GTF Anthem Central Region (OH, IN, KY)
GTG Anthem Blue Cross  California
GTH BCBS  Illinois
GTJ Not assigned prefix
GTK Not assigned prefix
GTL BCBS  Alabama
GTM Carefirst BCBS  Maryland
GTN Premera Blue Cross
GTO Not assigned prefix
GTP BCBS  Michigan
GTQ Blue Shield  California
GTR Not assigned prefix
GTS BCBS  Minnesota
GTT Not assigned prefix
GTU Carefirst BCBS  Maryland
GTV BCBS  Georgia
GTW BCBS  Georgia
GTX Not assigned prefix
GTY BCBS  South Carolina
GTZ Carefirst Administrators
GUA BCBS  Michigan
GUB Not assigned prefix
GUC BCBS  Michigan
GUD Wellmark BCBS
GUE Not assigned prefix
GUF Not assigned prefix
GUG BCBS  Florida
GUH Carefirst BCBS  Maryland
GUI Anthem Blue Cross  California
GUJ Premera Blue Cross
GUK BCBS  Georgia
GUL Horizon BCBS  New Jersey
GUM Not assigned prefix
GUN Anthem Central Region (OH, IN, KY)
GUO Not assigned prefix
GUP BCBS  Nebraska
GUQ BCBS  South Carolina
GUR BCBS  Michigan
GUS Anthem Central Region (OH, IN, KY)
GUT Wellmark BCBS
GUU Anthem Central Region (OH, IN, KY)
GUV Anthem Central Region (OH, IN, KY)
GUW BCBS  Illinois
GUX Anthem Central Region (OH, IN, KY)
GUY Not assigned prefix
GUZ BCBS  Michigan
GVA BCBS  Georgia
GVB BCBS  Louisiana
GVC Anthem BCBS  Colorado
GVD Anthem Central Region (OH, IN, KY)
GVE Highmark BCBS
GVF Not assigned prefix
GVG BCBS  Georgia
GVH BCBS  Georgia
GVJ BCBS  Michigan
GVK Regence BCBS  Washington
GVL BCBS  Michigan
GVM Wellmark BCBS
GVN Anthem Blue Cross  California
GVO BCBS  Georgia
GVP BCBS  Oklahoma
GVQ Not assigned prefix
GVR BCBS  Georgia
GVS Not assigned prefix
GVT BCBS  South Carolina
GVU BCBS  Georgia
GVV BCBS  South Carolina
GVW Not assigned prefix
GVY Premera Blue Cross
GVZ Not assigned prefix
GWA Blue Shield  California
GWB Horizon BCBS  New Jersey
GWC BCBS  South Carolina
GWD Not assigned prefix
GWE Anthem BCBS  Virginia
GWF Not assigned prefix
GWG Highmark BCBS
GWH Blue Shield  Northeastern New York
GWI Anthem
GWJ Premera Blue Cross
GWK BCBS  Illinois
GWL Not assigned prefix
GWM BCBS  Alabama
GWN Not assigned prefix
GWO Blue Cross  Idaho
GWP Anthem Central Region (OH, IN, KY)
GWQ Not assigned prefix
GWR BCBS  South Carolina
GWS Blue Shield  California
GWT Anthem BCBS  Virginia
GWU Blue Cross  Idaho
GWV Not assigned prefix
GWW Not assigned prefix
GWX Premera Blue Cross
GWY BCBS  Illinois
GWZ Not assigned prefix
GXA Anthem BCBS  Nevada
GXB Not assigned prefix
GXC BCBS  Illinois
GXE Not assigned prefix
GXF Not assigned prefix
GXG Highmark BCBS
GXH Not assigned prefix
GXJ Anthem Central Region (OH, IN, KY)
GXK Not assigned prefix
GXL Wellmark BCBS
GXM Highmark BCBS
GXN Not assigned prefix
GXP Not assigned prefix
GXQ Regence Blue Cross Blue Shield  Utah
GXR Not assigned prefix
GXS Anthem BCBS  Colorado
GXT Not assigned prefix
GXU Not assigned prefix
GXV BCBS  South Carolina
GXW BCBS  Western New York
GXX Not assigned prefix
GXY Blue Shield  California
GXZ BCBS  Minnesota
GYA Not assigned prefix
GYB Not assigned prefix
GYC Anthem Central Region (OH, IN, KY)
GYD Not assigned prefix
GYE Not assigned prefix
GYF BCBS  Minnesota
GYG Not assigned prefix
GYH Not assigned prefix
GYJ Anthem Blue Cross  California
GYK BCBS  Oklahoma
GYL Anthem Central Region (OH, IN, KY)
GYM Blue Shield  California
GYO Anthem Blue Cross  California
GYP Not assigned prefix
GYQ Not assigned prefix
GYR Anthem Central Region (OH, IN, KY)
GYS Not assigned prefix
GYT Not assigned prefix
GYU Highmark BCBS
GYV Anthem BCBS  Virginia
GYW Not assigned prefix
GYX Not assigned prefix
GYY BCBS  Michigan
GYZ Not assigned prefix
GZA BCBS  New Mexico
GZB BCBS  Western New York
GZC Anthem BCBS  Virginia
GZD BCBS  Michigan
GZE Carefirst Administrators
GZF BCBS  Alabama
GZG BCBS  Western New York
GZH Anthem Central Region (OH, IN, KY)
GZK Not assigned prefix
GZL Not assigned prefix
GZM Not assigned prefix
GZN Regence BCBS  Washington
GZP BCBS  Massachusetts
GZQ BCBS  Western New York
GZR BCBS  Illinois
GZS Regence Blue Cross Blue Shield  Oregon
GZT Not assigned prefix
GZU BCBS  Illinois
GZV Wellmark BCBS
GZW Not assigned prefix
GZX BCBS  Minnesota
GZY Anthem Central Region (OH, IN, KY)
GZZ Regence BCBS  Washington

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