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