BCBS Alpha Prefix list from AAA to AZZ updated (2022)

BCBS Alpha Prefix from AAA to AZZ

In this post, you will see the Entire set of A-prefix, Left Column indicates the prefix, and the Right column indicates the responsible insurance companies list.

BCBS Alpha Prefix List of “A”-series Blue Cross Blue Shield insurance Companies – Statewise
AAA BCBS of Alabama (AL)
AAB BCBS Blue Care Network Michigan (MI)
AAC BCBS of Illinois (IL)
AAD BCBS of South Carolina (SC) / Southcarolinablues
AAE Anthem BCBS of Nevada (NV)
AAF Still not assigned prefix
AAG Anthem BCBS of Georgia (GA)
AAH Blue Shield(BS) of California (CA)
AAI BCBS Blue Care Network Michigan (MI)
AAJ Still not assigned prefix
AAK Anthem BCBS of Indiana (IN)
AAL Still not assigned prefix
AAM BCBS of Alabama (AL)
AAN Empire BCBS of New York (NY)
AAO Blue Shield(BS) of California (CA)
AAP BCBS of Tennessee (TN)
AAQ Anthem BCBS of Kentucky (KY)
AAR Carefirst BCBS of Maryland (MD), District of Columbia (DC), and Northern Virginia (VA)
AAS Anthem BCBS of Indiana (IN)
AAT Anthem Blue Cross(BC) of California (CA)
AAU Anthem BCBS of Ohio (OH)
AAV Anthem BCBS of Georgia (GA)
AAW Still not assigned prefix
AAX BCBS of South Carolina (SC) / Southcarolinablues
AAY Blue Cross (BC) of Idaho (ID)
AAZ Anthem BCBS of Indiana (IN)
ABA BCBS of Illinois (IL)
ABB Still not assigned prefix
ABC BCBS of Alabama (AL)
ABD Regence BCBS of Oregon (OR) and Utah (UT)
Regence Blue Shield (BS) of Idaho (ID) and select counties of Washington (WA)
ABE BCBS of Minnesota (MN)
ABF Still not assigned prefix
ABG BCBS of Illinois (IL)
ABH BCBS of Minnesota (MN)
ABI Highmark BCBS of Pennsylvania (PA)
ABJ BCBS of Minnesota (MN)
ABK Carefirst BCBS of Maryland (MD), District of Columbia (DC), and Northern Virginia (VA)
ABL BCBS of Illinois (IL)
ABM BCBS of Alabama (AL)
ABN Anthem BCBS of Nevada (NV)
ABO Anthem Blue Cross(BC) of California (CA)
ABP BCBS of North Carolina (NC)
ABQ Still not assigned prefix
ABR Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
ABS Wellmark
ABT Anthem BCBS of Connecticut (CT)
ABU BCBS of Minnesota (MN)
ABV BCBS of Tennessee (TN)
ABW Anthem BCBS of Colorado (CO)
ABX Still not assigned prefix
ABY Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
ABZ Anthem BCBS of Indiana (IN)
ACA BCBS of Alabama (AL)
ACB Still not assigned prefix
ACC Still not assigned prefix
ACD Empire BCBS of New York (NY)
ACE Highmark BCBS of Pennsylvania (PA)
ACF Premera Blue Cross (BC) of Alaska (AK)
ACG BCBS of Tennessee (TN)
ACH Still not assigned prefix
ACI Anthem BCBS of Kentucky (KY)
ACJ Anthem BCBS of New Hampshire (NH)
ACK Still not assigned prefix
ACL Blue Cross (BC) of Idaho (ID)
ACM BCBS of Massachusetts (MA)
ACN BCBS of Texas (TX)
ACO Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
ACP Still not assigned prefix
ACQ Florida (FL) Blue
ACR Anthem Blue Cross(BC) of California (CA)
ACS Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
ACT BCBS of Illinois (IL)
ACU Blue shield(BS) of California (CA)
ACV Wellmark
ACW Anthem Blue Cross(BC) of California (CA)
ACX BCBS of Illinois (IL)
ACY Still not assigned prefix
ACZ Anthem BCBS of Georgia (GA)
ADA Anthem Blue Cross(BC) of California (CA)
ADB Anthem BCBS of Missouri (MO)
ADC BCBS of Illinois (IL)
ADD Anthem BCBS of Indiana (IN)
ADE BCBS of Illinois (IL)
ADF BCBS of Western New York (WNY)
ADG Anthem BCBS of Missouri (MO)
ADH Anthem BCBS of Ohio (OH)
ADI Anthem Blue Cross(BC) of California (CA)
ADJ BCBS of Nebraska (NE)
ADK Anthem Blue Cross(BC) of California (CA)
ADL Anthem BCBS of Indiana (IN)
ADM BCBS of Illinois (IL)
ADN Anthem BCBS of Missouri (MO)
ADO BCBS Blue Care Network Michigan (MI)
ADP Empire BCBS of New York (NY)
ADQ Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA)
ADR Wellmark
ADS Still not assigned prefix
ADT Still not assigned prefix
ADU Florida (FL) Blue
ADV BCBS of Illinois (IL)
ADW Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
ADX Florida(FL) Explore my plan
ADY Still not assigned prefix
ADZ Anthem BCBS of Missouri (MO)
AEA BCBS of Texas (TX)
AEB Still not assigned prefix
AEC Still not assigned prefix
AED Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AEE Arkansas (AR) Blue Cross
AEF BCBS of Illinois (IL)
AEG Anthem BCBS of Ohio (OH)
AEH Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AEI Anthem BCBS of Virginia (VA)
AEJ Still not assigned prefix
AEK Anthem BCBS of Ohio (OH)
AEL Anthem Blue Cross(BC) of California (CA)
AEM Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AEN Highmark BCBS of Pennsylvania (PA)
AEO BCBS of Massachusetts (MA)
AEP Wellmark
AEQ BCBS Blue Care Network Michigan (MI)
AER BCBS of Texas (TX)
AES BCBS of Alabama (AL)
AET Anthem Blue Cross(BC) of California (CA)
AEU BCBS of Texas (TX)
AEV BCBS of Texas (TX)
AEW Florida (FL) Blue
AEX BCBS of Texas (TX)
AEY Still not assigned prefix
AEZ BCBS of Illinois (IL)
AFA Still not assigned prefix
AFB BCBS of Kansas City
AFC Wellmark
AFD BCBS of South Carolina (SC) / Southcarolinablues
AFE Blue shield(BS) of California (CA)
AFF Still not assigned prefix
AFG BCBS of Kansas City
AFH Anthem BCBS of Ohio (OH)
AFI BCBS of Rhode Island (RI)
AFJ Anthem BCBS of Nevada (NV)
AFK BCBS of South Carolina (SC) / Southcarolinablues
AFL Still not assigned prefix
AFM BCBS of Minnesota (MN)
AFN Anthem BCBS of Ohio (OH)
AFO Arkansas (AR) Blue Cross
AFP Still not assigned prefix
AFQ Regence BCBS of Oregon (OR) and Utah (UT)
Regence Blue Shield (BS) of Idaho (ID) and select counties of Washington (WA)
AFR Anthem Blue Cross(BC) of California (CA)
AFS Still not assigned prefix
AFT Anthem BCBS of Virginia (VA)
AFU Anthem BCBS of Virginia (VA)
AFV Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AFW Still not assigned prefix
AFX BCBS of Illinois (IL)
AFY Highmark BCBS of Pennsylvania (PA)
AFZ Anthem BCBS of Ohio (OH)
AGA Anthem BCBS of Georgia (GA)
AGB Excellus BCBS of New York (NY)
AGC Still not assigned prefix
AGD Anthem BCBS of Indiana (IN)
AGE Anthem BCBS of Ohio (OH)
AGF Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA)
AGG Anthem BCBS of Ohio (OH)
AGH Anthem BCBS of Georgia (GA)
AGI Anthem BCBS of Nevada (NV)
AGJ Blue Cross (BC) of Idaho (ID)
AGK BCBS of Minnesota (MN)
AGL Premera BCBS of Alaska (AK)
AGM Blue Cross (BC) of Idaho (ID)
AGN Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AGO Still not assigned prefix
AGP BCBS of Minnesota (MN)
AGQ Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AGR Anthem BCBS of Colorado (CO)
AGS Anthem Blue Cross(BC) of California (CA)
AGT Blue shield(BS) of California (CA)
AGU Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AGV BCBS of South Carolina (SC) / Southcarolinablues
AGW Still not assigned prefix
AGX Anthem BCBS of Virginia (VA)
AGY Anthem BCBS of Wisconsin (WI)
AGZ BCBS of Massachusetts (MA)
AHA BCBS of Illinois (IL)
AHB Anthem BCBS of Ohio (OH)
AHC Premera Blue Cross (BC) of Alaska (AK)
AHD Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AHE Empire BCBS of New York (NY)
AHF Still not assigned prefix
AHG BCBS of North Carolina (NC)
AHH Anthem BCBS of Wisconsin (WI)
AHI Still not assigned prefix
AHJ Still not assigned prefix
AHK Still not assigned prefix
AHL Florida (FL) Blue
AHM BCBS of Illinois (IL)
AHN Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AHO Still not assigned prefix
AHP BCBS of Texas (TX)
AHQ BCBS of Illinois (IL)
AHR Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AHS Still not assigned prefix
AHT Anthem BCBS of Wisconsin (WI)
AHU Still not assigned prefix
AHV Anthem BCBS of Indiana (IN)
AHW BCBS of Vermont (VT)
AHX Anthem BCBS of Ohio (OH)
AHY Still not assigned prefix
AHZ Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AIA BCBS of Texas (TX)
AIB BCBS Blue Care Network Michigan (MI)
AIC Still not assigned prefix
AID Anthem BCBS of Ohio (OH)
AIE Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AIF BCBS Blue Care Network Michigan (MI)
AIG BCBS Blue Care Network Michigan (MI)
AIH Anthem BCBS of Wisconsin (WI)
AII BCBS of Louisiana(LA)
AIJ Anthem BCBS of New Hampshire (NH)
AIK BCBS Blue Care Network Michigan (MI)
AIL Anthem BCBS of Wisconsin (WI)
AIM BCBS of Massachusetts (MA)
AIN Still not assigned prefix
AIO Anthem BCBS of Virginia (VA)
AIP Anthem BCBS of Nevada (NV)
AIQ Still not assigned prefix
AIR Capital Blue Cross of Pennsylvania
AIS BCBS Blue Care Network Michigan (MI)
AIT BCBS Blue Care Network Michigan (MI)
AIU BCBS of Louisiana(LA)
AIV Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AIW BCBS of Illinois (IL)
AIX BCBS of South Carolina (SC) / Southcarolinablues
AIY Anthem BCBS of Indiana (IN)
AIZ Florida (FL) Blue
AJA BCBS of South Carolina (SC) / Southcarolinablues
AJB BCBS of Louisiana(LA)
AJC Blue shield(BS) of California (CA)
AJD Anthem BCBS of Ohio (OH)
AJE Florida (FL) Blue
AJF BCBS of South Carolina (SC) / Southcarolinablues
AJG BCBS of Illinois (IL)
AJH BCBS of South Carolina (SC) / Southcarolinablues
AJI Florida (FL) Blue
AJJ Still not assigned prefix
AJK BCBS of Illinois (IL)
AJL BCBS of Texas (TX)
AJM Still not assigned prefix
AJN Still not assigned prefix
AJO Anthem BCBS of Indiana (IN)
AJP Still not assigned prefix
AJQ Anthem Blue Cross(BC) of California (CA)
AJR BCBS Blue Care Network Michigan (MI)
AJS Anthem BCBS of Indiana (IN)
AJT BCBS Blue Care Network Michigan (MI)
AJU Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AJV Florida (FL) Blue
AJW Anthem BCBS of Kentucky (KY)
AJX Premera BCBS of Alaska (AK)
AJY BCBS of South Carolina (SC) / Southcarolinablues
AJZ Still not assigned prefix
AKA BCBS of Massachusetts (MA)
AKB Anthem BCBS of Ohio (OH)
AKC BCBS of South Carolina (SC) / Southcarolinablues
AKD BCBS of Minnesota (MN)
AKE Still not assigned prefix
AKF Still not assigned prefix
AKG Still not assigned prefix
AKH Anthem BCBS of Ohio (OH)
AKI Anthem BCBS of Nevada (NV)
AKJ Regence BCBS of Oregon (OR) and Utah (UT)
Regence Blue Shield (BS) of Idaho (ID) and select counties of Washington (WA)
AKK Anthem BCBS of Ohio (OH)
AKL Anthem BCBS of Ohio (OH)
AKM BCBS Blue Care Network Michigan (MI)
AKN Anthem BCBS of Georgia (GA)
AKO Still not assigned prefix
AKP Still not assigned prefix
AKQ Empire BCBS of New York (NY)
AKR Regence BCBS of Oregon (OR) and Utah (UT)
Regence Blue Shield (BS) of Idaho (ID) and select counties of Washington (WA)
AKS Anthem Blue Cross(BC) of California (CA)
AKT Anthem BCBS of Georgia (GA)
AKU Still not assigned prefix
AKV Empire BCBS of New York (NY)
AKW BCBS of South Carolina (SC) / Southcarolinablues
AKX Anthem BCBS of Kentucky (KY)
AKY Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AKZ Anthem BCBS of Georgia (GA)
ALA Wellmark
ALB Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
ALC Regence BCBS of Oregon (OR) and Utah (UT)
Regence Blue Shield (BS) of Idaho (ID) and select counties of Washington (WA)
ALD Still not assigned prefix
ALE BCBS of Texas (TX)
ALF Wellmark
ALG Still not assigned prefix
ALH Still not assigned prefix
ALI Anthem BCBS of Indiana (IN)
ALJ Still not assigned prefix
ALK Premera BCBS of Alaska (AK)
ALL Anthem BCBS of Ohio (OH)
ALM Anthem BCBS of Ohio (OH)
ALN Highmark BCBS of Pennsylvania (PA)
ALO Wellmark
ALP Anthem BCBS of Connecticut (CT)
ALQ Still not assigned prefix
ALR Anthem BCBS of Connecticut (CT)
ALS BCBS Blue Care Network Michigan (MI)
ALT BCBS of Texas (TX)
ALU Highmark BCBS of Western Virginia (WV)
ALV Premera BCBS of Alaska (AK)
ALW Blue Cross (BC) of Idaho (ID)
ALX Anthem BCBS of Ohio (OH)
ALY Still not assigned prefix
ALZ Still not assigned prefix
AMA BCBS of Illinois (IL)
AMB Anthem BCBS of Nevada (NV)
AMC Still not assigned prefix
AMD Anthem BCBS of Indiana (IN)
AME Blue shield(BS) of California (CA)
AMF Anthem BCBS of Wisconsin (WI)
AMG BCBS of Illinois (IL)
AMH Anthem BCBS of Nevada (NV)
AMI Blue Cross (BC) of Idaho (ID)
AMJ Anthem BCBS of Ohio (OH)
AMK Premera BCBS of Alaska (AK)
AML Wellmark
AMM Highmark BCBS of Pennsylvania (PA)
AMN Blue Cross (BC) of Idaho (ID)
AMO Still not assigned prefix
AMP Blue shield(BS) of California (CA)
AMQ Highmark BCBS of Pennsylvania (PA)
AMR BCBS of Texas (TX)
AMS BCBS of Illinois (IL)
AMT Blue Cross (BC) of Idaho (ID)
AMU Anthem BCBS of Virginia (VA)
AMV Anthem BCBS of Wisconsin (WI)
AMW Anthem BCBS of Wisconsin (WI)
AMX BCBS of North Carolina (NC)
AMY Anthem BCBS of Kentucky (KY)
AMZ Anthem BCBS of Wisconsin (WI)
ANA BCBS of Massachusetts (MA)
ANB Anthem BCBS of Wisconsin (WI)
ANC BCBS of Nebraska (NE)
AND BCBS of Illinois (IL)
ANE Regence BCBS of Oregon (OR) and Utah (UT)
Regence Blue Shield (BS) of Idaho (ID) and select counties of Washington (WA)
ANF Still not assigned prefix
ANG Still not assigned prefix
ANH Anthem BCBS of Kentucky (KY)
ANI Florida (FL) Blue
ANJ Anthem Blue Cross(BC) of California (CA)
ANK Anthem BCBS of Wisconsin (WI)
ANL Still not assigned prefix
ANM Still not assigned prefix
ANN Anthem BCBS of Ohio (OH)
ANO BCBS of Illinois (IL)
ANP Anthem BCBS of Nevada (NV)
ANQ Florida (FL) Blue
ANR Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
ANS Blue shield(BS) of California (CA)
ANT Anthem BCBS of Ohio (OH)
ANU Anthem BCBS of Ohio (OH)
ANV Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
ANW Anthem BCBS of Missouri (MO)
ANX Anthem BCBS of Wisconsin (WI)
ANY BCBS of Illinois (IL)
ANZ Wellmark
AOA Anthem BCBS of Ohio (OH)
AOB BCBS Blue Care Network Michigan (MI)
AOC Anthem BCBS of Missouri (MO)
AOD BCBS of Western New York (WNY)
AOE Anthem Blue Cross(BC) of California (CA)
AOF Wellmark
AOG BCBS of Western New York (WNY)
AOH BCBS of Western New York (WNY)
AOI BCBS of Texas (TX)
AOJ BCBS of Western New York (WNY)
AOK Regence BCBS of Oregon (OR) and Utah (UT)
Regence Blue Shield (BS) of Idaho (ID) and select counties of Washington (WA)
AOL Still not assigned prefix
AOM Highmark BCBS of Pennsylvania (PA)
AON BCBS of Illinois (IL)
AOO BCBS of Minnesota (MN)
AOP Blue shield(BS) of Northeastern New York (NeNY)
AOQ BCBS of Western New York (WNY)
AOR BCBS of Western New York (WNY)
AOS BCBS of Tennessee (TN)
AOT Anthem BCBS of Missouri (MO)
AOU Still not assigned prefix
AOV Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA)
AOW BCBS Blue Care Network Michigan (MI)
AOX BCBS of North Carolina (NC)
AOY Blue Cross (BC) of Idaho (ID)
AOZ Anthem Blue Cross(BC) of California (CA)
APA Wellmark
APB Arkansas (AR) Blue Cross
APC Anthem BCBS of Ohio (OH)
APD BCBS of Illinois (IL)
APE Regence BCBS of Oregon (OR) and Utah (UT)
Regence Blue Shield (BS) of Idaho (ID) and select counties of Washington (WA)
APF Still not assigned prefix
APG Anthem BCBS of Connecticut (CT)
APH Anthem BCBS of Connecticut (CT)
API BCBS of Western New York (WNY)
APJ BCBS of Massachusetts (MA)
APK BCBS of Arizona (AZ)
APL Still not assigned prefix
APM Highmark BCBS of Pennsylvania (PA)
APN Anthem BCBS of Indiana (IN)
APO Anthem Blue Cross(BC) of California (CA)
APP Wellmark
APQ Anthem BCBS of Connecticut (CT)
APR Anthem BCBS of Connecticut (CT)
APS BCBS of South Carolina (SC) / Southcarolinablues
APT Still not assigned prefix
APU BCBS of Minnesota (MN)
APV BCBS of Illinois (IL)
APW BCBS of Massachusetts (MA)
APX Blue Shield (BS) of California
APY Highmark BCBS of Pennsylvania (PA)
APZ Still not assigned prefix
AQA Florida (FL) Blue
AQB BCBS of Rhode Island (RI)
AQC Anthem BCBS of Ohio (OH)
AQD Anthem BCBS of Ohio (OH)
AQE Blue Cross (BC) of Idaho (ID)
AQF Wellmark
AQG Anthem BCBS of Wisconsin (WI)
AQH BCBS of Massachusetts (MA)
AQI Anthem BCBS of Kentucky (KY)
AQJ Premera BCBS of Alaska (AK)
AQK BCBS of Minnesota (MN)
AQL Highmark BCBS of Pennsylvania (PA)
AQM Still not assigned prefix
AQN Anthem BCBS of Georgia (GA)
AQO Still not assigned prefix
AQP BCBS of South Carolina (SC) / Southcarolinablues
AQQ BCBS Blue Care Network Michigan (MI)
AQR Anthem BCBS of Georgia (GA)
AQS Blue Shield (BS) of California
AQT Premera BCBS of Alaska (AK)
AQU BCBS of Kansas City
AQV Regence BCBS of Oregon (OR) and Utah (UT)
Regence Blue Shield (BS) of Idaho (ID) and select counties of Washington (WA)
AQW Still not assigned prefix
AQX Empire BCBS of New York (NY)
AQY BCBS of Alabama (AL)
AQZ BCBS of Illinois (IL)
ARA BCBS of Western New York (WNY)
ARB BCBS of Texas (TX)
ARC Anthem Blue Cross(BC) of California (CA)
ARD BCBS of New Mexico (NM)
ARE Anthem BCBS of Georgia (GA)
ARF Still not assigned prefix
ARG Highmark BCBS of Pennsylvania (PA)
ARH Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
ARI Still not assigned prefix
ARJ Anthem BCBS of Missouri (MO)
ARK Anthem Blue Cross(BC) of California (CA)
ARL Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
ARM Blue Shield (BS) of California
ARN BCBS of Alabama (AL)
ARO Still not assigned prefix
ARP BCBS of Illinois (IL)
ARQ Anthem BCBS of Georgia (GA)
ARR Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA)
ARS Still not assigned prefix
ART BCBS of Minnesota (MN)
ARU BCBS of Texas (TX)
ARV Anthem Blue Cross(BC) of California (CA)
ARW Anthem BCBS of Missouri (MO)
ARX BCBS of Kansas
ARY Anthem BCBS of Connecticut (CT)
ARZ Highmark BCBS of Pennsylvania (PA)
ASA Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
ASB Excellus BCBS of New York (NY)
ASC Still not assigned prefix
ASD BCBS of Illinois (IL)
ASE BCBS of North Carolina (NC)
ASF BCBS of Illinois (IL)
ASG Excellus BCBS of New York (NY)
ASH Anthem BCBS of Kentucky (KY)
ASI BCBS of Kansas City
ASJ Anthem BCBS of Kentucky (KY)
ASK Wellmark
ASL Horizon BCBS of New Jersey (NJ)
ASM Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
ASN Still not assigned prefix
ASO Anthem BCBS of Indiana (IN)
ASP BCBS of Massachusetts (MA)
ASQ Anthem BCBS of Wisconsin (WI)
ASR Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA)
ASS Still not assigned prefix
AST BCBS of Tennessee (TN)
ASU Anthem BCBS of Georgia (GA)
ASV Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
ASW Still not assigned prefix
ASX Anthem BCBS of Georgia (GA)
ASY BCBS Blue Care Network Michigan (MI)
ASZ Anthem BCBS of Ohio (OH)
ATA BCBS of Illinois (IL)
ATB Wellmark
ATC BCBS Blue Care Network Michigan (MI)
ATD Regence BCBS of Oregon (OR) and Utah (UT)
Regence Blue Shield (BS) of Idaho (ID) and select counties of Washington (WA)
ATE Empire BCBS of New York (NY)
ATF Still not assigned prefix
ATG Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
ATH BCBS of Massachusetts (MA)
ATI BCBS of Alabama (AL)
ATJ Anthem BCBS of Connecticut (CT)
ATK Anthem BCBS of Connecticut (CT)
ATL Still not assigned prefix
ATM Anthem BCBS of Maine (ME)
ATN Anthem BCBS of Missouri (MO)
ATO BCBS of Illinois (IL)
ATP Wellmark
ATQ Blue Shield (BS) of California
ATR Anthem Blue Cross(BC) of California (CA)
ATS BCBS of Illinois (IL)
ATT Still not assigned prefix
ATU Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
ATV BCBS of Illinois (IL)
ATW Anthem BCBS of Virginia (VA)
ATX Still not assigned prefix
ATY BCBS of South Carolina (SC) / Southcarolinablues
ATZ Still not assigned prefix
AUA Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA)
AUB BCBS Blue Care Network Michigan (MI)
AUC Still not assigned prefix
AUD Still not assigned prefix
AUE Anthem BCBS of Virginia (VA)
AUF Anthem BCBS of Georgia (GA)
AUG BCBS Blue Care Network Michigan (MI)
AUH Highmark BCBS of Pennsylvania (PA)
AUI Still not assigned prefix
AUJ Anthem BCBS of Wisconsin (WI)
AUK Independence Blue Cross(BC) of Philadelphia(Phi) and Southeastern Pennsylvania(PA)
AUL Empire BCBS of New York (NY)
AUM Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AUN Still not assigned prefix
AUO Still not assigned prefix
AUP BCBS Blue Care Network Michigan (MI)
AUQ Anthem BCBS of Wisconsin (WI)
AUR Anthem BCBS of Wisconsin (WI)
AUS Blue Shield (BS) of California
AUT Florida (FL) Blue
AUU Still not assigned prefix
AUV BCBS Blue Care Network Michigan (MI)
AUW Highmark BCBS of Delaware (DE)
AUX BCBS of Massachusetts (MA)
AUY Wellmark
AUZ BCBS of Texas (TX)
AVA BCBS of Minnesota (MN)
AVB Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AVC BCBS of South Carolina (SC) / Southcarolinablues
AVD BCBS of Minnesota (MN)
AVE Still not assigned prefix
AVF BCBS of Western New York (WNY)
AVG BCBS of New Mexico (NM)
AVH Still not assigned prefix
AVI Anthem BCBS of Virginia (VA)
AVJ Still not assigned prefix
AVK Blue Shield (BS) of California
AVL Premera BCBS of Alaska (AK)
AVM Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AVN Premera BCBS of Alaska (AK)
AVO Anthem BCBS of Virginia (VA)
AVP Anthem BCBS of Georgia (GA)
AVQ Still not assigned prefix
AVR Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AVS Still not assigned prefix
AVT Anthem Blue Cross(BC) of California (CA)
AVU Still not assigned prefix
AVV Premera BCBS of Alaska (AK)
AVW BCBS of Massachusetts (MA)
AVX Still not assigned prefix
AVY BCBS of Texas (TX)
AVZ Anthem BCBS of Connecticut (CT)
AWA Regence BCBS of Oregon (OR) and Utah (UT)
Regence Blue Shield (BS) of Idaho (ID) and select counties of Washington (WA)
AWB Premera BCBS of Alaska (AK)
AWC Anthem BCBS of Connecticut (CT)
AWD BCBS of Minnesota (MN)
AWE Anthem BCBS of Connecticut (CT)
AWF BCBS of Illinois (IL)
AWG Still not assigned prefix
AWH Still not assigned prefix
AWI BCBS of Alabama (AL)
AWJ Premera BCBS of Alaska (AK)
AWK Wellmark
AWL Anthem BCBS of Connecticut (CT)
AWM Highmark BCBS of Pennsylvania (PA)
AWN BCBS of Illinois (IL)
AWO BCBS of Illinois (IL)
AWP Anthem Blue Cross(BC) of California (CA)
AWQ Regence BCBS of Oregon (OR) and Utah (UT)
Regence Blue Shield (BS) of Idaho (ID) and select counties of Washington (WA)
AWR Highmark BCBS of Pennsylvania (PA)
AWS Wellmark
AWT Anthem BCBS of Connecticut (CT)
AWU Still not assigned prefix
AWV Anthem BCBS of Connecticut (CT)
AWW BCBS of Alabama (AL)
AWX Anthem BCBS of Ohio (OH)
AWY Anthem BCBS of Connecticut (CT)
AWZ BCBS of Alabama (AL)
AXA BCBS of Nebraska (NE)
AXB Highmark BCBS of Delaware (DE)
AXC Arkansas (AR) Blue Cross
AXD BCBS of Massachusetts (MA)
AXE Anthem BCBS of Indiana (IN)
AXF Anthem BCBS of Georgia (GA)
AXG Florida (FL) Blue
AXH Still not assigned prefix
AXI Still not assigned prefix
AXJ Anthem BCBS of Nevada (NV)
AXK Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AXL BCBS Blue Care Network Michigan (MI)
AXM BCBS of Illinois (IL)
AXN Still not assigned prefix
AXO Blue Shield (BS) of California
AXP BCBS of Massachusetts (MA)
AXQ BCBS of Minnesota (MN)
AXR BCBS of South Carolina (SC) / Southcarolinablues
AXS BCBS of Massachusetts (MA)
AXT BCBS of Illinois (IL)
AXU Anthem BCBS of Georgia (GA)
AXV BCBS of Illinois (IL)
AXW Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AXX BCBS of Alabama (AL)
AXY Still not assigned prefix
AXZ Still not assigned prefix
AYA Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AYB Blue Shield (BS) of California
AYC BCBS of Texas (TX)
AYD Florida (FL) Blue
AYE Wellmark
AYF BCBS of Illinois (IL)
AYG Carefirst BCBS of Maryland (MD), District of Columbia (DC) and Northern Virginia (VA)
AYH BCBS of Massachusetts (MA)
AYI BCBS of Tennessee (TN)
AYJ Anthem Blue Cross(BC) of California (CA)
AYK Anthem Blue Cross(BC) of California (CA)
AYL Still not assigned prefix
AYM Still not assigned prefix
AYN BCBS of Alabama (AL)
AYO Still not assigned prefix
AYP Still not assigned prefix
AYQ BCBS of Massachusetts (MA)
AYR Highmark BCBS of Pennsylvania (PA)
AYS Premera BCBS of Alaska (AK)
AYT Anthem BCBS of Nevada (NV)
AYU Anthem BCBS of Wisconsin (WI)
AYV Still not assigned prefix
AYW BCBS of Western New York (WNY)
AYX Anthem BCBS of Wisconsin (WI)
AYY Blue Shield (BS) of California
AYZ BCBS of North Carolina (NC)
AZA BCBS of North Carolina (NC)
AZB Anthem BCBS of Connecticut (CT)
AZC Anthem BCBS of Colorado (CO)
AZD Still not assigned prefix
AZE BCBS of Illinois (IL)
AZF BCBS of Mississippi (MS)
AZG Still not assigned prefix
AZH BCBS of Texas (TX)
AZI Still not assigned prefix
AZJ Anthem BCBS of Connecticut (CT)
AZK BCBS of Massachusetts (MA)
AZL Anthem BCBS of Connecticut (CT)
AZM Still not assigned prefix
AZN Excellus BCBS of New York (NY)
AZO Blue Shield (BS) of California
AZP Still not assigned prefix
AZQ Still not assigned prefix
AZR Still not assigned prefix
AZS Blue Shield (BS) of California
AZT Blue Shield (BS) of California
AZU Anthem Blue Cross(BC) of California (CA)
AZV Anthem Blue Cross(BC) of California (CA)
AZW BCBS of Illinois (IL)
AZX Anthem BCBS of Georgia (GA)
AZY Blue Shield (BS) of California
AZZ Carefirst BCBS of Maryland (MD), District of Columbia (DC), and Northern Virginia (VA)

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