BCBS Prefix list CAA-CZZ is updated as per latest information gathered from authorized sources and portals.
BCBS Prefix List CAA-CZZ
| Prefix | BCBS Plan | State |
| CAA | Carefirst BCBS | District of Columbia, Maryland |
| CAB | Anthem BCBS of Wisconsin | Wisconsin |
| CAC | Anthem BCBS of Missouri | Missouri |
| CAD | BCBS of Massachusetts | Massachusetts |
| CAE | Empire BCBS of New York | New York |
| CAF | BCBS of Mississippi | Mississippi |
| CAG | BlueNo AssignmentShield of California | California |
| CAH | Anthem BCBS of Georgia | Georgia |
| CAI | Anthem BlueNo AssignmentCross | California |
| CAJ | Wellmark BCBS | Iowa, South Dakota |
| CAK | BlueNo AssignmentShield of California | California |
| CAL | BCBS of Minnesota | Minnesota |
| CAM | Highmark BCBS of West Virginia | West Virginia |
| CAN | BCBS of Illinois | Illinois |
| CAO | No Assignment | No Assignment |
| CAP | BCBS of Texas | Texas |
| CAQ | Premera BlueNo AssignmentCross of Alaska | Alaska |
| CAR | Anthem BCBS of Wisconsin | Wisconsin |
| CAS | BCBS of Texas | Texas |
| CAT | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CAU | Carefirst BCBS | District of Columbia, Maryland |
| CAV | Premera BlueNo AssignmentCross of Alaska | Alaska |
| CAW | BlueNo AssignmentShield of California | California |
| CAX | Anthem BlueNo AssignmentCross | California |
| CAY | BCBS of Massachusetts | Massachusetts |
| CAZ | BCBS of Minnesota | Minnesota |
| CBA | Anthem BlueNo AssignmentCross | California |
| CBB | BCBS of Texas | Texas |
| CBC | No Assignment | No Assignment |
| CBD | Highmark BCBS of Pennsylvania | Pennsylvania |
| CBE | No Assignment | No Assignment |
| CBF | Anthem BCBS of Ohio | Ohio |
| CBG | BCBS of Alabama | Alabama |
| CBH | Anthem BCBS of Colorado | Colorado |
| CBI | Anthem BCBS of Ohio | Ohio |
| CBJ | BCBS of South Carolina | South Carolina |
| CBK | Anthem BCBS of Ohio | Ohio |
| CBL | No Assignment | No Assignment |
| CBM | Anthem BlueNo AssignmentCross | California |
| CBN | No Assignment | No Assignment |
| CBO | BCBS of Louisiana | Louisiana |
| CBP | Anthem BCBS of Ohio | Ohio |
| CBQ | Anthem BlueNo AssignmentCross | California |
| CBR | Anthem BCBS of Wisconsin | Wisconsin |
| CBS | Anthem BCBS of New Hampshire | New Hampshire |
| CBT | Anthem BCBS of Ohio | Ohio |
| CBU | Horizon BCBS of New Jersey | New Jersey |
| CBV | BCBS of Louisiana | Louisiana |
| CBW | Anthem BCBS of Colorado | Colorado |
| CBX | No Assignment | No Assignment |
| CBY | BCBS of Illinois | Illinois |
| CBZ | Horizon BCBS of New Jersey | New Jersey |
| CCA | Empire BCBS of New York | New York |
| CCB | Carefirst BCBS | District of Columbia, Maryland |
| CCC | BlueNo AssignmentCross of Idaho | Idaho |
| CCD | BCBS of South Carolina | South Carolina |
| CCE | No Assignment | No Assignment |
| CCF | BCBS of Illinois | Illinois |
| CCG | No Assignment | No Assignment |
| CCH | Wellmark BCBS | Iowa, South Dakota |
| CCI | BCBS of Michigan | Michigan |
| CCJ | BCBS of Michigan | Michigan |
| CCK | BCBS of Minnesota | Minnesota |
| CCL | BCBS of Illinois | Illinois |
| CCM | BCBS of Texas | Texas |
| CCN | No Assignment | No Assignment |
| CCO | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CCP | No Assignment | No Assignment |
| CCQ | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CCR | Wellmark BCBS | Iowa, South Dakota |
| CCS | No Assignment | No Assignment |
| CCT | No Assignment | No Assignment |
| CCU | No Assignment | No Assignment |
| CCV | Anthem BlueNo AssignmentCross | California |
| CCW | Carefirst BCBS | District of Columbia, Maryland |
| CCX | BCBS of Minnesota | Minnesota |
| CCY | Wellmark BCBS | Iowa, South Dakota |
| CCZ | BlueNo AssignmentShield of California | California |
| CDA | BCBS of Illinois | Illinois |
| CDB | No Assignment | No Assignment |
| CDC | BCBS of Arizona | Arizona |
| CDD | No Assignment | No Assignment |
| CDE | No Assignment | No Assignment |
| CDF | Anthem BCBS of Kentucky | Kentucky |
| CDG | Wellmark BCBS | Iowa, South Dakota |
| CDH | No Assignment | No Assignment |
| CDI | Carefirst BCBS | District of Columbia, Maryland |
| CDJ | Anthem BCBS of Indiana | Indiana |
| CDK | Empire BCBS of New York | New York |
| CDL | Carefirst BCBS | District of Columbia, Maryland |
| CDM | Highmark BCBS of Pennsylvania | Pennsylvania |
| CDN | Arkansas BCBS | Arkansas |
| CDO | Wellmark BCBS | Iowa, South Dakota |
| CDP | Wellmark BCBS | Iowa, South Dakota |
| CDQ | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CDR | Carefirst BCBS | District of Columbia, Maryland |
| CDS | BlueNo AssignmentShield of Northeastern New York | New York (Northeastern) |
| CDT | Anthem BCBS of Connecticut | Connecticut |
| CDU | BCBS of Illinois | Illinois |
| CDV | BCBS of South Carolina | South Carolina |
| CDW | BCBS of Massachusetts | Massachusetts |
| CDX | BCBS of Illinois | Illinois |
| CDY | Carefirst BCBS | District of Columbia, Maryland |
| CDZ | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CEA | Anthem BCBS of Virginia | Virginia |
| CEB | Wellmark BCBS | Iowa, South Dakota |
| CEC | BCBS of Illinois | Illinois |
| CED | BCBS of Illinois | Illinois |
| CEE | BCBS of Texas | Texas |
| CEF | Anthem BCBS of Ohio | Ohio |
| CEG | Carefirst BCBS | District of Columbia, Maryland |
| CEH | BCBS of Massachusetts | Massachusetts |
| CEI | Carefirst BCBS | District of Columbia, Maryland |
| CEJ | BCBS of Illinois | Illinois |
| CEK | No Assignment | No Assignment |
| CEL | BCBS of Massachusetts | Massachusetts |
| CEM | Anthem BlueNo AssignmentCross | California |
| CEN | No Assignment | No Assignment |
| CEO | BCBS of Nebraska | Nebraska |
| CEP | BCBS of Illinois | Illinois |
| CEQ | Wellmark BCBS | Iowa, South Dakota |
| CER | No Assignment | No Assignment |
| CES | BCBS of Louisiana | Louisiana |
| CET | BlueNo AssignmentShield of California | California |
| CEU | No Assignment | No Assignment |
| CEV | BCBS of Illinois | Illinois |
| CEW | Wellmark BCBS | Iowa, South Dakota |
| CEX | BCBS of Illinois | Illinois |
| CEY | BCBS of Illinois | Illinois |
| CEZ | BCBS of Illinois | Illinois |
| CFA | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CFB | Wellmark BCBS | Iowa, South Dakota |
| CFC | Anthem BCBS of Georgia | Georgia |
| CFD | Anthem BCBS of Indiana | Indiana |
| CFE | BCBS of South Carolina | South Carolina |
| CFF | Highmark BCBS of Pennsylvania | Pennsylvania |
| CFG | BCBS of North Carolina | North Carolina |
| CFH | Anthem BlueNo AssignmentCross | California |
| CFI | Carefirst BCBS | District of Columbia, Maryland |
| CFJ | Wellmark BCBS | Iowa, South Dakota |
| CFK | Wellmark BCBS | Iowa, South Dakota |
| CFL | BCBS of South Carolina | South Carolina |
| CFM | BCBS of Massachusetts | Massachusetts |
| CFN | BCBS of Massachusetts | Massachusetts |
| CFO | Carefirst BCBS | District of Columbia, Maryland |
| CFP | No Assignment | No Assignment |
| CFQ | No Assignment | No Assignment |
| CFR | BCBS of Illinois | Illinois |
| CFS | Horizon BCBS of New Jersey | New Jersey |
| CFT | Empire BCBS of New York | New York |
| CFU | Carefirst BCBS | District of Columbia, Maryland |
| CFV | Wellmark BCBS | Iowa, South Dakota |
| CFW | No Assignment | No Assignment |
| CFX | Premera BlueNo AssignmentCross of Alaska | Alaska |
| CFY | Anthem BCBS of Ohio | Ohio |
| CFZ | Anthem BCBS of Ohio | Ohio |
| CGA | Anthem BlueNo AssignmentCross | California |
| CGB | BlueNo AssignmentShield of California | California |
| CGC | BCBS of South Carolina | South Carolina |
| CGD | BlueNo AssignmentShield of California | California |
| CGE | BCBS of Texas | Texas |
| CGF | BCBS of Arizona | Arizona |
| CGG | Anthem BCBS of Kentucky | Kentucky |
| CGH | Anthem BCBS of Missouri | Missouri |
| CGI | Wellmark BCBS | Iowa, South Dakota |
| CGJ | BCBS of Massachusetts | Massachusetts |
| CGK | Carefirst BCBS | District of Columbia, Maryland |
| CGL | BCBS of Minnesota | Minnesota |
| CGM | No Assignment | No Assignment |
| CGN | BCBS of Nebraska | Nebraska |
| CGO | BCBS of Illinois | Illinois |
| CGP | Excellus BCBS of New York | New York |
| CGQ | BCBS of North Carolina | North Carolina |
| CGR | Carefirst BCBS | District of Columbia, Maryland |
| CGS | Anthem BCBS of Missouri | Missouri |
| CGT | Anthem BCBS of Connecticut | Connecticut |
| CGU | No Assignment | No Assignment |
| CGV | Carefirst BCBS | District of Columbia, Maryland |
| CGW | BCBS of Minnesota | Minnesota |
| CGX | Anthem BCBS of Missouri | Missouri |
| CGY | FloridaNo AssignmentBlue | Florida |
| CGZ | Anthem BCBS of Ohio | Ohio |
| CHA | BCBS of Alabama | Alabama |
| CHB | BCBS of Massachusetts | Massachusetts |
| CHC | Carefirst BCBS | District of Columbia, Maryland |
| CHD | Carefirst BCBS | District of Columbia, Maryland |
| CHE | No Assignment | No Assignment |
| CHF | BCBS of Texas | Texas |
| CHG | BCBS of Illinois | Illinois |
| CHH | BCBS of Tennessee | Tennessee |
| CHI | No Assignment | No Assignment |
| CHJ | No Assignment | No Assignment |
| CHK | Wellmark BCBS | Iowa, South Dakota |
| CHL | Anthem BCBS of Ohio | Ohio |
| CHM | BCBS of Nebraska | Nebraska |
| CHN | No Assignment | No Assignment |
| CHO | BCBS of Louisiana | Louisiana |
| CHP | Capital BlueNo AssignmentCross of Pennsylvania | Pennsylvania |
| CHQ | Anthem BCBS of Kentucky | Kentucky |
| CHR | BCBS of Illinois | Illinois |
| CHS | BCBS of North Carolina | North Carolina |
| CHT | BCBS of Tennessee | Tennessee |
| CHU | Carefirst BCBS | District of Columbia, Maryland |
| CHV | BCBS of Illinois | Illinois |
| CHW | No Assignment | No Assignment |
| CHX | BCBS of North Carolina | North Carolina |
| CHY | BCBS of South Carolina | South Carolina |
| CHZ | No Assignment | No Assignment |
| CIA | Carefirst BCBS | District of Columbia, Maryland |
| CIB | BCBS of Illinois | Illinois |
| CIC | Carefirst BCBS | District of Columbia, Maryland |
| CID | BCBS of North Carolina | North Carolina |
| CIE | Wellmark BCBS | Iowa, South Dakota |
| CIF | BCBS of Illinois | Illinois |
| CIG | No Assignment | No Assignment |
| CIH | Carefirst BCBS | District of Columbia, Maryland |
| CII | Anthem BCBS of Georgia | Georgia |
| CIJ | BlueNo AssignmentCross of Idaho | Idaho |
| CIK | Capital BlueNo AssignmentCross of Pennsylvania | Pennsylvania |
| CIL | No Assignment | No Assignment |
| CIM | No Assignment | No Assignment |
| CIN | Carefirst BCBS | District of Columbia, Maryland |
| CIO | Capital BlueNo AssignmentCross of Pennsylvania | Pennsylvania |
| CIP | BCBS of Alabama | Alabama |
| CIQ | BCBS of Tennessee | Tennessee |
| CIR | Premera BlueNo AssignmentCross of Alaska | Alaska |
| CIS | Regence BCBS | Idaho, Oregon, Utah, Washington |
| CIT | FloridaNo AssignmentBlue | Florida |
| CIU | Anthem BCBS of Virginia | Virginia |
| CIV | Capital BlueNo AssignmentCross of Pennsylvania | Pennsylvania |
| CIW | Anthem BCBS of Indiana | Indiana |
| CIX | Anthem BCBS of Missouri | Missouri |
| CIY | FloridaNo AssignmentBlue | Florida |
| CIZ | Carefirst BCBS | District of Columbia, Maryland |
| CJA | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CJB | BCBS of Illinois | Illinois |
| CJC | Anthem BCBS of Ohio | Ohio |
| CJD | No Assignment | No Assignment |
| CJE | Empire BCBS of New York | New York |
| CJF | BCBS of Nebraska | Nebraska |
| CJG | BCBS of Kansas City | Kansas City |
| CJH | BCBS of North Carolina | North Carolina |
| CJI | Highmark BCBS of West Virginia | West Virginia |
| CJJ | Premera BlueNo AssignmentCross of Alaska | Alaska |
| CJK | BCBS of Massachusetts | Massachusetts |
| CJL | Empire BCBS of New York | New York |
| CJM | FloridaNo AssignmentBlue | Florida |
| CJN | FloridaNo AssignmentBlue | Florida |
| CJO | Anthem BCBS of Ohio | Ohio |
| CJP | No Assignment | No Assignment |
| CJQ | BlueNo AssignmentCross of Idaho | Idaho |
| CJR | Anthem BCBS of Wisconsin | Wisconsin |
| CJS | BCBS of Illinois | Illinois |
| CJT | BCBS of Texas | Texas |
| CJU | BCBS of Illinois | Illinois |
| CJV | Empire BCBS of New York | New York |
| CJW | No Assignment | No Assignment |
| CJX | Anthem BCBS of Ohio | Ohio |
| CJY | Anthem BCBS of Ohio | Ohio |
| CJZ | Wellmark BCBS | Iowa, South Dakota |
| CKA | Carefirst BCBS | District of Columbia, Maryland |
| CKB | Anthem BCBS of Ohio | Ohio |
| CKC | No Assignment | No Assignment |
| CKD | No Assignment | No Assignment |
| CKE | BlueNo AssignmentShield of California | California |
| CKF | No Assignment | No Assignment |
| CKG | BCBS of Tennessee | Tennessee |
| CKH | Anthem BCBS of Indiana | Indiana |
| CKI | Anthem BCBS of Georgia | Georgia |
| CKJ | Anthem BCBS of Indiana | Indiana |
| CKK | No Assignment | No Assignment |
| CKL | Carefirst BCBS | District of Columbia, Maryland |
| CKM | Highmark BCBS of Pennsylvania | Pennsylvania |
| CKN | Regence BCBS | Idaho, Oregon, Utah, Washington |
| CKO | BCBS of Massachusetts | Massachusetts |
| CKP | BCBS of Texas | Texas |
| CKQ | Anthem BCBS of Ohio | Ohio |
| CKR | BCBS of Tennessee | Tennessee |
| CKS | Anthem BCBS of Missouri | Missouri |
| CKT | No Assignment | No Assignment |
| CKU | Anthem BCBS of Ohio | Ohio |
| CKV | Anthem BCBS of Ohio | Ohio |
| CKW | Anthem BCBS of Indiana | Indiana |
| CKX | BlueNo AssignmentShield of California | California |
| CKY | BlueNo AssignmentShield of California | California |
| CKZ | No Assignment | No Assignment |
| CLA | No Assignment | No Assignment |
| CLB | BCBS of Illinois | Illinois |
| CLC | BCBS of South Carolina | South Carolina |
| CLD | Anthem BCBS of Georgia | Georgia |
| CLE | BCBS of Texas | Texas |
| CLF | Anthem BCBS of Georgia | Georgia |
| CLG | No Assignment | No Assignment |
| CLH | Excellus BCBS of New York | New York |
| CLI | Wellmark BCBS | Iowa, South Dakota |
| CLJ | Anthem BCBS of Ohio | Ohio |
| CLK | No Assignment | No Assignment |
| CLL | Anthem BlueNo AssignmentCross | California |
| CLM | Wellmark BCBS | Iowa, South Dakota |
| CLN | BCBS of North Carolina | North Carolina |
| CLO | BCBS of Mississippi | Mississippi |
| CLP | No Assignment | No Assignment |
| CLQ | No Assignment | No Assignment |
| CLR | Premera BlueNo AssignmentCross of Alaska | Alaska |
| CLS | BCBS of Massachusetts | Massachusetts |
| CLT | Wellmark BCBS | Iowa, South Dakota |
| CLU | Anthem BCBS of Virginia | Virginia |
| CLV | Carefirst BCBS | District of Columbia, Maryland |
| CLW | Anthem BCBS of Georgia | Georgia |
| CLX | No Assignment | No Assignment |
| CLY | Wellmark BCBS | Iowa, South Dakota |
| CLZ | Carefirst BCBS | District of Columbia, Maryland |
| CMA | BCBS of Michigan | Michigan |
| CMB | Anthem BCBS of Virginia | Virginia |
| CMC | Wellmark BCBS | Iowa, South Dakota |
| CMD | Anthem BCBS of Missouri | Missouri |
| CME | BCBS of Illinois | Illinois |
| CMF | Wellmark BCBS | Iowa, South Dakota |
| CMG | Wellmark BCBS | Iowa, South Dakota |
| CMH | BCBS of Tennessee | Tennessee |
| CMI | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CMJ | Anthem BCBS of Indiana | Indiana |
| CMK | Anthem BCBS of Ohio | Ohio |
| CML | No Assignment | No Assignment |
| CMM | BCBS of Massachusetts | Massachusetts |
| CMN | BlueNo AssignmentShield of Northeastern New York | New York (Northeastern) |
| CMO | No Assignment | No Assignment |
| CMP | BCBS of Minnesota | Minnesota |
| CMQ | Regence BCBS | Idaho, Oregon, Utah, Washington |
| CMR | BCBS of Illinois | Illinois |
| CMS | BCBS of Massachusetts | Massachusetts |
| CMT | Anthem BCBS of Ohio | Ohio |
| CMU | Highmark BCBS of Pennsylvania | Pennsylvania |
| CMV | BlueNo AssignmentShield of California | California |
| CMW | Wellmark BCBS | Iowa, South Dakota |
| CMX | Excellus BCBS of New York | New York |
| CMY | BlueNo AssignmentCross of Idaho | Idaho |
| CMZ | Anthem BCBS of Ohio | Ohio |
| CNA | No Assignment | No Assignment |
| CNB | Anthem BCBS of Ohio | Ohio |
| CNC | BCBS of Texas | Texas |
| CND | No Assignment | No Assignment |
| CNE | Wellmark BCBS | Iowa, South Dakota |
| CNF | Wellmark BCBS | Iowa, South Dakota |
| CNG | Highmark BCBS of Pennsylvania | Pennsylvania |
| CNH | Anthem BCBS of Ohio | Ohio |
| CNI | BCBS of Texas | Texas |
| CNJ | BCBS of South Carolina | South Carolina |
| CNK | Wellmark BCBS | Iowa, South Dakota |
| CNL | BCBS of Illinois | Illinois |
| CNM | Highmark BCBS of Pennsylvania | Pennsylvania |
| CNN | No Assignment | No Assignment |
| CNO | No Assignment | No Assignment |
| CNP | No Assignment | No Assignment |
| CNQ | No Assignment | No Assignment |
| CNR | Carefirst BCBS | District of Columbia, Maryland |
| CNS | No Assignment | No Assignment |
| CNT | BCBS of Illinois | Illinois |
| CNU | Carefirst BCBS | District of Columbia, Maryland |
| CNV | BCBS of Illinois | Illinois |
| CNW | Carefirst BCBS | District of Columbia, Maryland |
| CNX | BCBS of Minnesota | Minnesota |
| CNY | Anthem BCBS of Virginia | Virginia |
| CNZ | BCBS of Illinois | Illinois |
| COA | Capital BlueNo AssignmentCross of Pennsylvania | Pennsylvania |
| COB | BCBS of Texas | Texas |
| COC | Carefirst BCBS | District of Columbia, Maryland |
| COD | Anthem BCBS of Ohio | Ohio |
| COE | No Assignment | No Assignment |
| COF | No Assignment | No Assignment |
| COG | Anthem BCBS of Colorado | Colorado |
| COH | No Assignment | No Assignment |
| COI | No Assignment | No Assignment |
| COJ | BCBS of Alabama | Alabama |
| COK | No Assignment | No Assignment |
| COL | No Assignment | No Assignment |
| COM | BCBS of Alabama | Alabama |
| CON | BCBS of Massachusetts | Massachusetts |
| COO | BCBS of Minnesota | Minnesota |
| COP | BCBS of Alabama | Alabama |
| COQ | No Assignment | No Assignment |
| COR | No Assignment | No Assignment |
| COS | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| COT | BlueNo AssignmentCross of Idaho | Idaho |
| COU | No Assignment | No Assignment |
| COV | BCBS of Arizona | Arizona |
| COW | No Assignment | No Assignment |
| COX | BlueNo AssignmentShield of California | California |
| COY | Capital BlueNo AssignmentCross of Pennsylvania | Pennsylvania |
| COZ | No Assignment | No Assignment |
| CPA | BCBS of Minnesota | Minnesota |
| CPB | Carefirst BCBS | District of Columbia, Maryland |
| CPC | BCBS of Alabama | Alabama |
| CPD | BCBS of Massachusetts | Massachusetts |
| CPE | BCBS of Illinois | Illinois |
| CPF | BCBS of North Carolina | North Carolina |
| CPG | BlueNo AssignmentShield of Northeastern New York | New York (Northeastern) |
| CPH | BCBS of Illinois | Illinois |
| CPI | No Assignment | No Assignment |
| CPJ | Carefirst BCBS | District of Columbia, Maryland |
| CPK | Regence BCBS | Idaho, Oregon, Utah, Washington |
| CPL | BCBS of Kansas City | Kansas City |
| CPM | Carefirst BCBS | District of Columbia, Maryland |
| CPN | Carefirst BCBS | District of Columbia, Maryland |
| CPO | No Assignment | No Assignment |
| CPP | Wellmark BCBS | Iowa, South Dakota |
| CPQ | Anthem BlueNo AssignmentCross | California |
| CPR | Anthem BlueNo AssignmentCross | California |
| CPS | BCBS of Alabama | Alabama |
| CPT | Anthem BlueNo AssignmentCross | California |
| CPU | BCBS of Nebraska | Nebraska |
| CPV | Anthem BCBS of Georgia | Georgia |
| CPW | Wellmark BCBS | Iowa, South Dakota |
| CPX | No Assignment | No Assignment |
| CPY | BCBS of Illinois | Illinois |
| CPZ | BlueNo AssignmentShield of Northeastern New York | New York (Northeastern) |
| CQA | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CQB | Anthem BlueNo AssignmentCross | California |
| CQC | No Assignment | No Assignment |
| CQD | No Assignment | No Assignment |
| CQE | Anthem BCBS of Missouri | Missouri |
| CQF | No Assignment | No Assignment |
| CQG | No Assignment | No Assignment |
| CQH | Regence BCBS | Idaho, Oregon, Utah, Washington |
| CQI | Carefirst BCBS | District of Columbia, Maryland |
| CQJ | BCBS of Texas | Texas |
| CQK | BlueNo AssignmentShield of California | California |
| CQL | No Assignment | No Assignment |
| CQM | Highmark BCBS of Pennsylvania | Pennsylvania |
| CQN | BlueNo AssignmentShield of California | California |
| CQO | Carefirst BCBS | District of Columbia, Maryland |
| CQP | No Assignment | No Assignment |
| CQQ | Anthem BCBS of Colorado | Colorado |
| CQR | No Assignment | No Assignment |
| CQS | BCBS of Western New York | New York (Western) |
| CQT | No Assignment | No Assignment |
| CQU | No Assignment | No Assignment |
| CQV | Wellmark BCBS | Iowa, South Dakota |
| CQW | No Assignment | No Assignment |
| CQX | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CQY | Wellmark BCBS | Iowa, South Dakota |
| CQZ | No Assignment | No Assignment |
| CRA | Capital BlueNo AssignmentCross of Pennsylvania | Pennsylvania |
| CRB | BCBS of Minnesota | Minnesota |
| CRC | Capital BlueNo AssignmentCross of Pennsylvania | Pennsylvania |
| CRD | No Assignment | No Assignment |
| CRE | BlueNo AssignmentShield of California | California |
| CRF | BCBS of North Carolina | North Carolina |
| CRG | BCBS of Texas | Texas |
| CRH | BCBS of Michigan | Michigan |
| CRI | Anthem BCBS of Ohio | Ohio |
| CRJ | No Assignment | No Assignment |
| CRK | BCBS of Texas | Texas |
| CRL | Excellus BCBS of New York | New York |
| CRM | BCBS of Illinois | Illinois |
| CRN | BCBS of North Carolina | North Carolina |
| CRO | Anthem BCBS of Virginia | Virginia |
| CRP | BCBS of Illinois | Illinois |
| CRQ | Anthem BCBS of Wisconsin | Wisconsin |
| CRR | Anthem BCBS of Ohio | Ohio |
| CRS | Premera BlueNo AssignmentCross of Alaska | Alaska |
| CRT | No Assignment | No Assignment |
| CRU | BCBS of Western New York | New York (Western) |
| CRV | No Assignment | No Assignment |
| CRW | Anthem BlueNo AssignmentCross | California |
| CRX | BCBS of North Carolina | North Carolina |
| CRY | BCBS of Tennessee | Tennessee |
| CRZ | BCBS of Texas | Texas |
| CSA | BCBS of Alabama | Alabama |
| CSB | BCBS of Illinois | Illinois |
| CSC | FloridaNo AssignmentBlue | Florida |
| CSD | Carefirst BCBS | District of Columbia, Maryland |
| CSE | No Assignment | No Assignment |
| CSF | Anthem BCBS of Colorado | Colorado |
| CSG | Anthem BCBS of Indiana | Indiana |
| CSH | Anthem BCBS of Georgia | Georgia |
| CSI | BCBS of Kansas City | Kansas City |
| CSJ | Anthem BCBS of Missouri | Missouri |
| CSK | Wellmark BCBS | Iowa, South Dakota |
| CSL | Horizon BCBS of New Jersey | New Jersey |
| CSM | Arkansas BCBS | Arkansas |
| CSN | No Assignment | No Assignment |
| CSO | Carefirst BCBS | District of Columbia, Maryland |
| CSP | Excellus BCBS of New York | New York |
| CSQ | Anthem BCBS of Missouri | Missouri |
| CSR | BlueNo AssignmentShield of California | California |
| CSS | Anthem BCBS of Colorado | Colorado |
| CST | Anthem BCBS of Colorado | Colorado |
| CSU | Regence BCBS | Idaho, Oregon, Utah, Washington |
| CSV | Anthem BCBS of Virginia | Virginia |
| CSW | No Assignment | No Assignment |
| CSX | Wellmark BCBS | Iowa, South Dakota |
| CSY | No Assignment | No Assignment |
| CSZ | BCBS of South Carolina | South Carolina |
| CTA | BCBS of Massachusetts | Massachusetts |
| CTB | BCBS of South Carolina | South Carolina |
| CTC | BCBS of Oklahoma | Oklahoma |
| CTD | Anthem BCBS of Indiana | Indiana |
| CTE | No Assignment | No Assignment |
| CTF | BCBS of Minnesota | Minnesota |
| CTG | Anthem BCBS of Connecticut | Connecticut |
| CTH | BCBS of South Carolina | South Carolina |
| CTI | BCBS of Massachusetts | Massachusetts |
| CTJ | Anthem BCBS of Indiana | Indiana |
| CTK | Capital BlueNo AssignmentCross of Pennsylvania | Pennsylvania |
| CTL | BCBS of Illinois | Illinois |
| CTM | BlueNo AssignmentCross of Idaho | Idaho |
| CTN | No Assignment | No Assignment |
| CTO | BlueNo AssignmentShield of California | California |
| CTP | No Assignment | No Assignment |
| CTQ | BCBS of Western New York | New York (Western) |
| CTR | Anthem BCBS of Indiana | Indiana |
| CTS | BCBS of Nebraska | Nebraska |
| CTT | Premera BlueNo AssignmentCross of Alaska | Alaska |
| CTU | BlueNo AssignmentShield of California | California |
| CTV | No Assignment | No Assignment |
| CTW | Premera BlueNo AssignmentCross of Alaska | Alaska |
| CTX | BlueNo AssignmentShield of California | California |
| CTY | BCBS of Illinois | Illinois |
| CTZ | BCBS of Arizona | Arizona |
| CUA | No Assignment | No Assignment |
| CUB | Excellus BCBS of New York | New York |
| CUC | No Assignment | No Assignment |
| CUD | BCBS of Massachusetts | Massachusetts |
| CUE | No Assignment | No Assignment |
| CUF | BlueNo AssignmentShield of California | California |
| CUG | Wellmark BCBS | Iowa, South Dakota |
| CUH | Anthem BCBS of Colorado | Colorado |
| CUI | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CUJ | No Assignment | No Assignment |
| CUK | BCBS of Alabama | Alabama |
| CUL | No Assignment | No Assignment |
| CUM | No Assignment | No Assignment |
| CUN | Highmark BCBS of Pennsylvania | Pennsylvania |
| CUO | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CUP | Wellmark BCBS | Iowa, South Dakota |
| CUQ | BlueNo AssignmentShield of California | California |
| CUR | BCBS of Western New York | New York (Western) |
| CUS | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CUT | BCBS of Illinois | Illinois |
| CUU | BCBS of Texas | Texas |
| CUV | BCBS of Illinois | Illinois |
| CUW | Wellmark BCBS | Iowa, South Dakota |
| CUX | Regence BCBS | Idaho, Oregon, Utah, Washington |
| CUY | Regence BCBS | Idaho, Oregon, Utah, Washington |
| CUZ | Anthem BCBS of Ohio | Ohio |
| CVA | Anthem BCBS of Indiana | Indiana |
| CVB | FloridaNo AssignmentBlue | Florida |
| CVC | BCBS of Illinois | Illinois |
| CVD | Carefirst BCBS | District of Columbia, Maryland |
| CVE | Anthem BCBS of Indiana | Indiana |
| CVF | Anthem BCBS of Ohio | Ohio |
| CVG | Anthem BCBS of Ohio | Ohio |
| CVH | No Assignment | No Assignment |
| CVI | BCBS of Alabama | Alabama |
| CVJ | FloridaNo AssignmentBlue | Florida |
| CVK | FloridaNo AssignmentBlue | Florida |
| CVL | Regence BCBS | Idaho, Oregon, Utah, Washington |
| CVM | Anthem BCBS of Wisconsin | Wisconsin |
| CVN | Anthem BCBS of Connecticut | Connecticut |
| CVO | Anthem BCBS of Virginia | Virginia |
| CVP | Anthem BCBS of Ohio | Ohio |
| CVQ | No Assignment | No Assignment |
| CVR | Anthem BCBS of Indiana | Indiana |
| CVS | Wellmark BCBS | Iowa, South Dakota |
| CVT | Carefirst BCBS | District of Columbia, Maryland |
| CVU | Anthem BCBS of Virginia | Virginia |
| CVV | Carefirst BCBS | District of Columbia, Maryland |
| CVW | No Assignment | No Assignment |
| CVX | BCBS of Illinois | Illinois |
| CVY | Anthem BCBS of Ohio | Ohio |
| CVZ | Wellmark BCBS | Iowa, South Dakota |
| CWA | Carefirst BCBS | District of Columbia, Maryland |
| CWB | Anthem BCBS of Ohio | Ohio |
| CWC | No Assignment | No Assignment |
| CWD | Wellmark BCBS | Iowa, South Dakota |
| CWE | BCBS of Michigan | Michigan |
| CWF | BlueNo AssignmentCross of Idaho | Idaho |
| CWG | Anthem BCBS of Ohio | Ohio |
| CWH | Anthem BCBS of Missouri | Missouri |
| CWI | BlueNo AssignmentShield of California | California |
| CWJ | No Assignment | No Assignment |
| CWK | BCBS of Massachusetts | Massachusetts |
| CWL | No Assignment | No Assignment |
| CWM | Highmark BCBS of Pennsylvania | Pennsylvania |
| CWN | Carefirst BCBS | District of Columbia, Maryland |
| CWO | BCBS of Massachusetts | Massachusetts |
| CWP | BCBS of Texas | Texas |
| CWQ | Anthem BCBS of Ohio | Ohio |
| CWR | Anthem BCBS of Wisconsin | Wisconsin |
| CWS | Anthem BCBS of Georgia | Georgia |
| CWT | BCBS of Texas | Texas |
| CWU | Carefirst BCBS | District of Columbia, Maryland |
| CWV | Carefirst BCBS | District of Columbia, Maryland |
| CWW | Wellmark BCBS | Iowa, South Dakota |
| CWX | Anthem BCBS of Missouri | Missouri |
| CWY | Wellmark BCBS | Iowa, South Dakota |
| CWZ | Empire BCBS of New York | New York |
| CXA | No Assignment | No Assignment |
| CXB | BlueNo AssignmentCross of Idaho | Idaho |
| CXC | BCBS of Rhode Island | Rhode Island |
| CXD | BCBS of Illinois | Illinois |
| CXE | No Assignment | No Assignment |
| CXF | Premera BlueNo AssignmentCross of Alaska | Alaska |
| CXG | BCBS of Minnesota | Minnesota |
| CXH | BCBS of Minnesota | Minnesota |
| CXI | BCBS of Nebraska | Nebraska |
| CXJ | Excellus BCBS of New York | New York |
| CXK | BCBS of Texas | Texas |
| CXL | No Assignment | No Assignment |
| CXM | No Assignment | No Assignment |
| CXN | No Assignment | No Assignment |
| CXO | Arkansas BCBS | Arkansas |
| CXP | BCBS of Texas | Texas |
| CXQ | Wellmark BCBS | Iowa, South Dakota |
| CXR | BCBS of Rhode Island | Rhode Island |
| CXS | Anthem BCBS of Georgia | Georgia |
| CXT | BCBS of Illinois | Illinois |
| CXU | No Assignment | No Assignment |
| CXV | No Assignment | No Assignment |
| CXW | No Assignment | No Assignment |
| CXX | BlueNo AssignmentShield of California | California |
| CXY | No Assignment | No Assignment |
| CXZ | Carefirst BCBS | District of Columbia, Maryland |
| CYA | BCBS of Illinois | Illinois |
| CYB | BlueNo AssignmentShield of California | California |
| CYC | BCBS of Illinois | Illinois |
| CYD | No Assignment | No Assignment |
| CYE | Regence BCBS | Idaho, Oregon, Utah, Washington |
| CYF | No Assignment | No Assignment |
| CYG | FloridaNo AssignmentBlue | Florida |
| CYH | No Assignment | No Assignment |
| CYI | BCBS of Massachusetts | Massachusetts |
| CYJ | Anthem BCBS of Georgia | Georgia |
| CYK | FloridaNo AssignmentBlue | Florida |
| CYL | BCBS of Illinois | Illinois |
| CYM | No Assignment | No Assignment |
| CYN | No Assignment | No Assignment |
| CYO | BCBS of Massachusetts | Massachusetts |
| CYP | BCBS of Illinois | Illinois |
| CYQ | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CYR | BCBS of Texas | Texas |
| CYS | BCBS of Illinois | Illinois |
| CYT | Anthem BCBS of Georgia | Georgia |
| CYU | Empire BCBS of New York | New York |
| CYV | Regence BCBS | Idaho, Oregon, Utah, Washington |
| CYW | No Assignment | No Assignment |
| CYX | BCBS of North Carolina | North Carolina |
| CYY | BCBS of North Carolina | North Carolina |
| CYZ | Regence BCBS | Idaho, Oregon, Utah, Washington |
| CZA | Anthem BCBS of Kentucky | Kentucky |
| CZB | Anthem BCBS of Indiana | Indiana |
| CZC | Anthem BCBS of Connecticut | Connecticut |
| CZD | No Assignment | No Assignment |
| CZE | BCBS of Texas | Texas |
| CZF | No Assignment | No Assignment |
| CZG | Carefirst BCBS | District of Columbia, Maryland |
| CZH | Anthem BCBS of Connecticut | Connecticut |
| CZI | BlueNo AssignmentShield of California | California |
| CZJ | No Assignment | No Assignment |
| CZK | Anthem BCBS of Virginia | Virginia |
| CZL | No Assignment | No Assignment |
| CZM | No Assignment | No Assignment |
| CZN | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CZO | No Assignment | No Assignment |
| CZP | Anthem BCBS of Ohio | Ohio |
| CZQ | Anthem BCBS of Ohio | Ohio |
| CZR | Wellmark BCBS | Iowa, South Dakota |
| CZS | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CZT | Anthem BCBS of Connecticut | Connecticut |
| CZU | Anthem BlueNo AssignmentCross | California |
| CZV | Independence BlueNo AssignmentCross of Philadelphia and Southeastern Pennsylvania | Pennsylvania |
| CZW | BCBS of Minnesota | Minnesota |
| CZX | No Assignment | No Assignment |
| CZY | BCBS of North Carolina | North Carolina |
| CZZ | No Assignment | No Assignment |
Note- BCBS Alpha Prefix CAA-CZZ, all information is collected from reliable sources like www.bcbs.com , etc. If there is any discrepancy please contact us via contact page.