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