| UAA | BCBS of Michigan | https://www.bcbsm.com/ |
| UAB | Unknown Assignment | https://www.bcbs.com/ |
| UAC | BCBS of Michigan | https://www.bcbsm.com/ |
| UAD | Regence | https://www.regence.com/member/home |
| UAF | Prefix Not in Use | https://www.bcbs.com/member-services |
| UAG | BCBS of Texas | https://www.bcbstx.com/ |
| UAH | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| UAI | Prefix Not in Use | https://www.bcbs.com/member-services |
| UAK | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| UAM | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| UAN | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| UAO | BCBS of Michigan | https://www.bcbsm.com/ |
| UAP | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| UAQ | Blue Shield of California | https://blueshieldcaplans.com/ |
| UAR | Prefix Not in Use | https://www.bcbs.com/member-services |
| UAS | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UAT | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UAV | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UAX | Empire BCBS of New York | https://www.empireblue.com/ |
| UBA | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| UBB | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| UBC | Anthem BCBS of Indiana | https://www.anthem.com/individual-and-family/health-insurance/indiana/ |
| UBD | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UBF | Independence Blue Cross | https://www.ibx.com/index.jsp |
| UBG | BCBS of Michigan | https://www.bcbsm.com/ |
| UBH | Prefix Not in Use | https://www.bcbs.com/member-services |
| UBI | Prefix Not in Use | https://www.bcbs.com/member-services |
| UBK | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UBL | Independence Blue Cross | https://www.ibx.com/index.jsp |
| UBN | Prefix Not in Use | https://www.bcbs.com/member-services |
| UBO | Blue Shield of California | https://blueshieldcaplans.com/ |
| UBP | Wellmark BCBS | https://www.wellmark.com/ |
| UBQ | Prefix Not in Use | https://www.bcbs.com/member-services |
| UBR | Anthem BCBS of Kentucky | https://www.anthem.com/individual-and-family/health-insurance/kentucky/ |
| UBT | Prefix Not in Use | https://www.bcbs.com/member-services |
| UBU | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| UBV | Wellmark BCBS | https://www.wellmark.com/ |
| UBW | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UBX | Wellmark BCBS | https://www.wellmark.com/ |
| UBY | Prefix Not in Use | https://www.bcbs.com/member-services |
| UBZ | Anthem BCBS of Indiana | https://www.anthem.com/individual-and-family/health-insurance/indiana/ |
| UCA | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UCB | Premera Blue Cross | https://www.premera.com/visitor |
| UCC | BCBS of Michigan | https://www.bcbsm.com/ |
| UCD | Anthem BCBS of Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| UCE | BCBS of Texas | https://www.bcbstx.com/ |
| UCF | Anthem BCBS of Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| UCG | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| UCH | Unknown Assignment | https://www.bcbs.com/ |
| UCI | BCBS of Michigan | https://www.bcbsm.com/ |
| UCJ | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| UCK | BCBS of Michigan | https://www.bcbsm.com/ |
| UCL | Anthem BCBS of Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| UCM | BCBS of Illinois | https://www.bcbsil.com/ |
| UCN | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| UCO | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| UCP | Wellmark BCBS | https://www.wellmark.com/ |
| UCQ | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UCR | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| UCT | Prefix Not in Use | https://www.bcbs.com/member-services |
| UCU | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UCV | Anthem BCBS of Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| UCW | BCBS of Tennessee | https://www.bcbst.com/get-insurance/index.page |
| UCX | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UCY | Prefix Not in Use | https://www.bcbs.com/member-services |
| UCZ | Prefix Not in Use | https://www.bcbs.com/member-services |
| UDA | Premera Blue Cross | https://www.premera.com/visitor |
| UDB | Wellmark BCBS | https://www.wellmark.com/ |
| UDC | BCBS of Michigan | https://www.bcbsm.com/ |
| UDD | BCBS of Michigan | https://www.bcbsm.com/ |
| UDE | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UDF | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UDK | Prefix Not in Use | https://www.bcbs.com/member-services |
| UDM | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| UDN | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| UDO | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UDP | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| UDQ | BCBS of Michigan | https://www.bcbsm.com/ |
| UDR | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| UDS | Independence Blue Cross | https://www.ibx.com/index.jsp |
| UDT | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UDU | Prefix Not in Use | https://www.bcbs.com/member-services |
| UDV | Premera Blue Cross | https://www.premera.com/visitor |
| UDW | Regence | https://www.regence.com/member/home |
| UDX | BCBS of Michigan | https://www.bcbsm.com/ |
| UDY | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UDZ | Prefix Not in Use | https://www.bcbs.com/member-services |
| UEB | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| UEC | Blue Shield of California | https://blueshieldcaplans.com/ |
| UED | Wellmark BCBS | https://www.wellmark.com/ |
| UEF | Blue Shield of California | https://blueshieldcaplans.com/ |
| UEG | Empire BCBS of New York | https://www.empireblue.com/ |
| UEH | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| UEI | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UEJ | BCBS of Illinois | https://www.bcbsil.com/ |
| UEK | Wellmark BCBS | https://www.wellmark.com/ |
| UEM | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| UEN | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| UEO | Regence | https://www.regence.com/member/home |
| UER | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| UES | Empire BCBS of New York | https://www.empireblue.com/ |
| UEU | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UEV | Prefix Not in Use | https://www.bcbs.com/member-services |
| UEW | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| UEY | BCBS of Tennessee | https://www.bcbst.com/get-insurance/index.page |
| UFB | BCBS of Michigan | https://www.bcbsm.com/ |
| UFC | BCBS of Illinois | https://www.bcbsil.com/ |
| UFD | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| UFE | Prefix Not in Use | https://www.bcbs.com/member-services |
| UFF | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UFG | BCBS of Michigan | https://www.bcbsm.com/ |
| UFI | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UFJ | BCBS of Michigan | https://www.bcbsm.com/ |
| UFK | BCBS of Michigan | https://www.bcbsm.com/ |
| UFL | BCBS of Michigan | https://www.bcbsm.com/ |
| UFM | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| UFN | Independence Blue Cross | https://www.ibx.com/index.jsp |
| UFO | Prefix Not in Use | https://www.bcbs.com/member-services |
| UFP | Independence Blue Cross | https://www.ibx.com/index.jsp |
| UFQ | BCBS of Michigan | https://www.bcbsm.com/ |
| UFR | BCBS of Western New York | https://www.bcbswny.com/ |
| UFS | BCBS of Florida | https://www.floridablue.com/ |
| UFT | Independence Blue Cross | https://www.ibx.com/index.jsp |
| UFU | Excellus BCBS of New York | https://www.excellusbcbs.com/ |
| UFV | BCBS of Michigan | https://www.bcbsm.com/ |
| UFX | BCBS of Michigan | https://www.bcbsm.com/ |
| UFY | Wellmark BCBS | https://www.wellmark.com/ |
| UFZ | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| UGA | BCBS of Florida | https://www.floridablue.com/ |
| UGB | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UGD | BCBS of Michigan | https://www.bcbsm.com/ |
| UGE | Prefix Not in Use | https://www.bcbs.com/member-services |
| UGF | BCBS of Michigan | https://www.bcbsm.com/ |
| UGG | BCBS of Michigan | https://www.bcbsm.com/ |
| UGH | BCBS of Michigan | https://www.bcbsm.com/ |
| UGJ | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UGK | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UGL | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| UGM | Prefix Not in Use | https://www.bcbs.com/member-services |
| UGN | BCBS of Illinois | https://www.bcbsil.com/ |
| UGO | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UGP | BCBS of Michigan | https://www.bcbsm.com/ |
| UGQ | Blue Cross of Idaho | https://www.bcidaho.com/ |
| UGT | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| UGU | BCBS of Tennessee | https://www.bcbst.com/get-insurance/index.page |
| UGV | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| UGW | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UGX | BCBS of Illinois | https://www.bcbsil.com/ |
| UGY | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| UHA | Prefix Not in Use | https://www.bcbs.com/member-services |
| UHB | BCBS of Illinois | https://www.bcbsil.com/ |
| UHC | BCBS of Michigan | https://www.bcbsm.com/ |
| UHD | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UHE | BCBS of Arizona | https://www.azblue.com/individualsandfamilies |
| UHF | Independence Blue Cross | https://www.ibx.com/index.jsp |
| UHG | Prefix Not in Use | https://www.bcbs.com/member-services |
| UHI | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UHK | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UHL | BCBS of Arizona | https://www.azblue.com/individualsandfamilies |
| UHN | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| UHO | BCBS of Illinois | https://www.bcbsil.com/ |
| UHP | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| UHQ | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UHR | Highmark BCBS | https://www.highmarkblueshield.com/home/ |
| UHS | BCBS of Illinois | https://www.bcbsil.com/ |
| UHT | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UHU | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UHV | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UHW | BCBS of Illinois | https://www.bcbsil.com/ |
| UHX | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| UHZ | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UIB | Prefix Not in Use | https://www.bcbs.com/member-services |
| UIC | BCBS of Michigan | https://www.bcbsm.com/ |
| UID | Blue Cross of Idaho | https://www.bcidaho.com/ |
| UIF | BCBS of Florida | https://www.floridablue.com/ |
| UII | BCBS of Michigan | https://www.bcbsm.com/ |
| UIJ | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| UIK | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| UIL | BCBS of Michigan | https://www.bcbsm.com/ |
| UIM | Premera Blue Cross | https://www.premera.com/visitor |
| UIN | BCBS of Michigan | https://www.bcbsm.com/ |
| UIO | BCBS of Michigan | https://www.bcbsm.com/ |
| UIP | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UIQ | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| UIT | Anthem BCBS of Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| UIU | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| UIV | Premera Blue Cross | https://www.premera.com/visitor |
| UIX | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| UIY | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| UIZ | BCBS of Michigan | https://www.bcbsm.com/ |
| UJB | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| UJC | BCBS of Illinois | https://www.bcbsil.com/ |
| UJD | Premera Blue Cross | https://www.premera.com/visitor |
| UJE | Prefix Not in Use | https://www.bcbs.com/member-services |
| UJF | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| UJG | BCBS of Oklahoma | https://www.bcbsok.com/ |
| UJK | Prefix Not in Use | https://www.bcbs.com/member-services |
| UJL | Prefix Not in Use | https://www.bcbs.com/member-services |
| UJP | BCBS of Illinois | https://www.bcbsil.com/ |
| UJQ | BCBS of Texas | https://www.bcbstx.com/ |
| UJR | Regence | https://www.regence.com/member/home |
| UJU | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| UJV | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| UJW | Prefix Not in Use | https://www.bcbs.com/member-services |
| UJX | Independence Blue Cross | https://www.ibx.com/index.jsp |
| UJY | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| UJZ | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| UKA | Prefix Not in Use | https://www.bcbs.com/member-services |
| UKB | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| UKC | BCBS of Oklahoma | https://www.bcbsok.com/ |
| UKD | BCBS of Oklahoma | https://www.bcbsok.com/ |
| UKF | Prefix Not in Use | https://www.bcbs.com/member-services |
| UKH | Empire BCBS of New York | https://www.empireblue.com/ |
| UKJ | Empire BCBS of New York | https://www.empireblue.com/ |
| UKK | Prefix Not in Use | https://www.bcbs.com/member-services |
| UKN | Blue Cross of Idaho | https://www.bcidaho.com/ |
| UKO | Wellmark BCBS | https://www.wellmark.com/ |
| UKP | Prefix Not in Use | https://www.bcbs.com/member-services |
| UKR | Prefix Not in Use | https://www.bcbs.com/member-services |
| UKS | Prefix Not in Use | https://www.bcbs.com/member-services |
| UKU | BCBS of Tennessee | https://www.bcbst.com/get-insurance/index.page |
| UKV | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| UKW | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| UKZ | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| ULA | Anthem BCBS of Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| ULB | Prefix Not in Use | https://www.bcbs.com/member-services |
| ULD | Premera Blue Cross | https://www.premera.com/visitor |
| ULE | BCBS of Illinois | https://www.bcbsil.com/ |
| ULF | BCBS of Illinois | https://www.bcbsil.com/ |
| ULG | Prefix Not in Use | https://www.bcbs.com/member-services |
| ULH | Prefix Not in Use | https://www.bcbs.com/member-services |
| ULI | Independence Blue Cross | https://www.ibx.com/index.jsp |
| ULJ | BCBS of Michigan | https://www.bcbsm.com/ |
| ULK | BCBS of Western New York | https://www.bcbswny.com/ |
| ULL | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| ULM | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| ULO | BCBS of Michigan | https://www.bcbsm.com/ |
| ULQ | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| ULS | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| ULT | BCBS of Illinois | https://www.bcbsil.com/ |
| ULW | Wellmark BCBS | https://www.wellmark.com/ |
| ULX | Anthem BCBS of Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| UMB | Blue Cross of Idaho | https://www.bcidaho.com/ |
| UMC | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| UMD | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| UMF | BCBS of Illinois | https://www.bcbsil.com/ |
| UMG | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UMH | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UMJ | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| UMK | BCBS of Michigan | https://www.bcbsm.com/ |
| UMN | BCBS of Michigan | https://www.bcbsm.com/ |
| UMO | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UMQ | Anthem BCBS of Nevada | https://www.anthem.com/individual-and-family/health-insurance/nevada/ |
| UMR | Premera Blue Cross | https://www.premera.com/visitor |
| UMS | BCBS of Michigan | https://www.bcbsm.com/ |
| UMT | BCBS of Michigan | https://www.bcbsm.com/ |
| UMU | BCBS of Michigan | https://www.bcbsm.com/ |
| UMV | BCBS of Michigan | https://www.bcbsm.com/ |
| UMX | Premera Blue Cross | https://www.premera.com/visitor |
| UMY | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| UMZ | Premera Blue Cross | https://www.premera.com/visitor |
| UNA | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| UNB | BCBS of Nebraska | https://www.nebraskablue.com/ |
| UND | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| UNE | BCBS of Nebraska | https://www.nebraskablue.com/ |
| UNF | BCBS of Arizona | https://www.azblue.com/individualsandfamilies |
| UNG | BCBS of North Carolina | https://www.bluecrossnc.com/ |
| UNH | Prefix Not in Use | https://www.bcbs.com/member-services |
| UNJ | Prefix Not in Use | https://www.bcbs.com/member-services |
| UNK | BCBS of Tennessee | https://www.bcbst.com/get-insurance/index.page |
| UNL | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UNN | Premera Blue Cross | https://www.premera.com/visitor |
| UNQ | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| UNR | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UNS | Empire BCBS of New York | https://www.empireblue.com/ |
| UNT | Empire BCBS of New York | https://www.empireblue.com/ |
| UNU | Wellmark BCBS | https://www.wellmark.com/ |
| UNV | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UNX | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| UNY | Prefix Not in Use | https://www.bcbs.com/member-services |
| UNZ | Empire BCBS of New York | https://www.empireblue.com/ |
| UOA | Wellmark BCBS | https://www.wellmark.com/ |
| UOB | Wellmark BCBS | https://www.wellmark.com/ |
| UOC | BCBS of Illinois | https://www.bcbsil.com/ |
| UOD | Wellmark BCBS | https://www.wellmark.com/ |
| UOE | BCBS of Illinois | https://www.bcbsil.com/ |
| UOF | BCBS of Michigan | https://www.bcbsm.com/ |
| UOG | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| UOH | Premera Blue Cross | https://www.premera.com/visitor |
| UOI | Blue Cross of Idaho | https://www.bcidaho.com/ |
| UOK | Prefix Not in Use | https://www.bcbs.com/member-services |
| UOM | BCBS of Michigan | https://www.bcbsm.com/ |
| UON | Wellmark BCBS | https://www.wellmark.com/ |
| UOO | BCBS of Michigan | https://www.bcbsm.com/ |
| UOP | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UOQ | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| UOS | Prefix Not in Use | https://www.bcbs.com/member-services |
| UOT | Blue Shield of California | https://blueshieldcaplans.com/ |
| UOU | Regence | https://www.regence.com/member/home |
| UOW | Anthem BCBS of Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| UOX | Anthem BCBS of Indiana | https://www.anthem.com/individual-and-family/health-insurance/indiana/ |
| UOY | BCBS of Michigan | https://www.bcbsm.com/ |
| UPA | BCBS of Illinois | https://www.bcbsil.com/ |
| UPB | Independence Blue Cross | https://www.ibx.com/index.jsp |
| UPC | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| UPD | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| UPE | BCBS of Texas | https://www.bcbstx.com/ |
| UPF | Wellmark BCBS | https://www.wellmark.com/ |
| UPG | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UPH | BCBS of Illinois | https://www.bcbsil.com/ |
| UPI | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| UPJ | Premera Blue Cross | https://www.premera.com/visitor |
| UPK | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| UPL | Prefix Not in Use | https://www.bcbs.com/member-services |
| UPM | BCBS of Rhode Island | https://www.bcbsri.com/ |
| UPN | Prefix Not in Use | https://www.bcbs.com/member-services |
| UPO | Blue Shield of Northeastern New York | https://www.bsneny.com/ |
| UPP | BCBS of Texas | https://www.bcbstx.com/ |
| UPQ | BCBS of Western New York | https://www.bcbswny.com/ |
| UPR | Prefix Not in Use | https://www.bcbs.com/member-services |
| UPS | Wellmark BCBS | https://www.wellmark.com/ |
| UPT | BCBS of Illinois | https://www.bcbsil.com/ |
| UPU | Prefix Not in Use | https://www.bcbs.com/member-services |
| UPW | Anthem BCBS of Nevada | https://www.anthem.com/individual-and-family/health-insurance/nevada/ |
| UPX | BCBS of Texas | https://www.bcbstx.com/ |
| UPY | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| UQA | BCBS of Western New York | https://www.bcbswny.com/ |
| UQB | Wellmark BCBS | https://www.wellmark.com/ |
| UQC | Prefix Not in Use | https://www.bcbs.com/member-services |
| UQD | Wellmark BCBS | https://www.wellmark.com/ |
| UQE | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UQG | Prefix Not in Use | https://www.bcbs.com/member-services |
| UQH | Highmark BCBS | https://www.highmarkblueshield.com/home/ |
| UQI | Prefix Not in Use | https://www.bcbs.com/member-services |
| UQJ | Anthem BCBS of Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| UQK | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| UQL | Prefix Not in Use | https://www.bcbs.com/member-services |
| UQM | Anthem BCBS of Kentucky | https://www.anthem.com/individual-and-family/health-insurance/kentucky/ |
| UQN | Capital Blue Cross | https://www.capbluecross.com/ |
| UQO | Regence | https://www.regence.com/member/home |
| UQQ | BCBS of Michigan | https://www.bcbsm.com/ |
| UQR | Prefix Not in Use | https://www.bcbs.com/member-services |
| UQT | BCBS of Western New York | https://www.bcbswny.com/ |
| UQV | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UQW | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| UQX | BCBS of South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| UQZ | Regence | https://www.regence.com/member/home |
| URA | BCBS of Illinois | https://www.bcbsil.com/ |
| URC | Prefix Not in Use | https://www.bcbs.com/member-services |
| URD | Prefix Not in Use | https://www.bcbs.com/member-services |
| URE | BCBS of Texas | https://www.bcbstx.com/ |
| URF | Regence | https://www.regence.com/member/home |
| URG | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| URH | Prefix Not in Use | https://www.bcbs.com/member-services |
| URI | Independence Blue Cross | https://www.ibx.com/index.jsp |
| URK | BCBS of Illinois | https://www.bcbsil.com/ |
| URL | Excellus BCBS of New York | https://www.excellusbcbs.com/ |
| URN | BCBS of Illinois | https://www.bcbsil.com/ |
| URP | BCBS of Michigan | https://www.bcbsm.com/ |
| URQ | Highmark BCBS | https://www.highmarkblueshield.com/home/ |
| URR | BCBS of South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| URS | Blue Shield of California | https://blueshieldcaplans.com/ |
| URT | Prefix Not in Use | https://www.bcbs.com/member-services |
| URU | BCBS of Michigan | https://www.bcbsm.com/ |
| URV | BCBS of Illinois | https://www.bcbsil.com/ |
| URW | Wellmark BCBS | https://www.wellmark.com/ |
| URX | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| URY | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| URZ | Wellmark BCBS | https://www.wellmark.com/ |
| USA | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| USB | Regence | https://www.regence.com/member/home |
| USC | Prefix Not in Use | https://www.bcbs.com/member-services |
| USD | Highmark BCBS | https://www.highmarkbcbsde.com/home/ |
| USE | BCBS of Texas | https://www.bcbstx.com/ |
| USF | Prefix Not in Use | https://www.bcbs.com/member-services |
| USG | Prefix Not in Use | https://www.bcbs.com/member-services |
| USH | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| USI | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| USJ | Empire BCBS of New York | https://www.empireblue.com/ |
| USK | BCBS of South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| USL | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| USM | Blue Shield of California | https://blueshieldcaplans.com/ |
| USN | Prefix Not in Use | https://www.bcbs.com/member-services |
| USO | BCBS of Florida | https://www.floridablue.com/ |
| USP | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| USQ | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| USR | Excellus BCBS of New York | https://www.excellusbcbs.com/ |
| USS | BCBS of Texas | https://www.bcbstx.com/ |
| UST | BCBS of Illinois | https://www.bcbsil.com/ |
| USV | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| USW | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| USZ | BCBS of North Dakota | https://www.bcbsnd.com/ |
| UTA | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UTC | Prefix Not in Use | https://www.bcbs.com/member-services |
| UTD | BCBS of Illinois | https://www.bcbsil.com/ |
| UTE | Prefix Not in Use | https://www.bcbs.com/member-services |
| UTL | BCBS of Illinois | https://www.bcbsil.com/ |
| UTM | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UTN | BCBS of Illinois | https://www.bcbsil.com/ |
| UTP | Prefix Not in Use | https://www.bcbs.com/member-services |
| UTR | Independence Blue Cross | https://www.ibx.com/index.jsp |
| UTS | BCBS of Texas | https://www.bcbstx.com/ |
| UTT | Anthem BCBS of Indiana | https://www.anthem.com/individual-and-family/health-insurance/indiana/ |
| UTU | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| UTW | BCBS of Michigan | https://www.bcbsm.com/ |
| UTX | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| UTZ | BCBS of Tennessee | https://www.bcbst.com/get-insurance/index.page |
| UUA | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| UUC | BCBS of Oklahoma | https://www.bcbsok.com/ |
| UUD | Prefix Not in Use | https://www.bcbs.com/member-services |
| UUE | Blue Shield of California | https://blueshieldcaplans.com/ |
| UUH | BCBS of Florida | https://www.floridablue.com/ |
| UUI | BCBS of North Carolina | https://www.bluecrossnc.com/ |
| UUJ | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| UUL | BCBS of Tennessee | https://www.bcbst.com/get-insurance/index.page |
| UUM | Prefix Not in Use | https://www.bcbs.com/member-services |
| UUN | BCBS of Tennessee | https://www.bcbst.com/get-insurance/index.page |
| UUO | BCBS of Michigan | https://www.bcbsm.com/ |
| UUQ | Blue Shield of California | https://blueshieldcaplans.com/ |
| UUR | Prefix Not in Use | https://www.bcbs.com/member-services |
| UUS | Blue Shield of California | https://blueshieldcaplans.com/ |
| UUT | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| UUV | Prefix Not in Use | https://www.bcbs.com/member-services |
| UUX | BCBS of Illinois | https://www.bcbsil.com/ |
| UUY | Prefix Not in Use | https://www.bcbs.com/member-services |
| UUZ | BCBS of Michigan | https://www.bcbsm.com/ |
| UVA | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UVC | Independence Blue Cross | https://www.ibx.com/index.jsp |
| UVD | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| UVF | Unknown Assignment | https://www.bcbs.com/ |
| UVG | Wellmark BCBS | https://www.wellmark.com/ |
| UVH | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UVI | BCBS of Michigan | https://www.bcbsm.com/ |
| UVJ | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| UVM | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| UVN | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UVS | BCBS of Illinois | https://www.bcbsil.com/ |
| UVT | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| UVU | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| UVV | Wellmark BCBS | https://www.wellmark.com/ |
| UVX | Prefix Not in Use | https://www.bcbs.com/member-services |
| UVY | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UWA | BCBS of Michigan | https://www.bcbsm.com/ |
| UWB | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UWC | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| UWD | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UWE | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UWF | BCBS of Michigan | https://www.bcbsm.com/ |
| UWG | BCBS of Michigan | https://www.bcbsm.com/ |
| UWH | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UWI | Prefix Not in Use | https://www.bcbs.com/member-services |
| UWL | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UWM | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| UWN | BCBS of Illinois | https://www.bcbsil.com/ |
| UWO | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UWQ | Empire BCBS of New York | https://www.empireblue.com/ |
| UWR | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UWT | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| UWU | BCBS of Tennessee | https://www.bcbst.com/get-insurance/index.page |
| UWV | Prefix Not in Use | https://www.bcbs.com/member-services |
| UWW | BCBS of Michigan | https://www.bcbsm.com/ |
| UWX | BCBS of Rhode Island | https://www.bcbsri.com/ |
| UWY | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UWZ | BCBS of Florida | https://www.floridablue.com/ |
| UXA | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| UXB | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| UXD | BCBS of South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| UXE | BCBS of Tennessee | https://www.bcbst.com/get-insurance/index.page |
| UXF | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UXH | Wellmark BCBS | https://www.wellmark.com/ |
| UXI | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| UXK | Prefix Not in Use | https://www.bcbs.com/member-services |
| UXL | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| UXM | BCBS of Illinois | https://www.bcbsil.com/ |
| UXN | Prefix Not in Use | https://www.bcbs.com/member-services |
| UXQ | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| UXR | Wellmark BCBS | https://www.wellmark.com/ |
| UXS | Premera Blue Cross | https://www.premera.com/visitor |
| UXT | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| UXU | BCBS of Illinois | https://www.bcbsil.com/ |
| UXV | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| UXW | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| UXY | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| UXZ | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| UYA | BCBS of Illinois | https://www.bcbsil.com/ |
| UYC | Empire BCBS of New York | https://www.empireblue.com/ |
| UYF | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| UYG | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| UYH | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| UYI | BCBS of Michigan | https://www.bcbsm.com/ |
| UYJ | Regence | https://www.regence.com/member/home |
| UYK | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| UYM | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| UYN | Prefix Not in Use | https://www.bcbs.com/member-services |
| UYO | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| UYQ | BCBS of Louisiana | https://www.bcbsla.com/ |
| UYU | BCBS of Arizona | https://www.azblue.com/individualsandfamilies |
| UYV | Wellmark BCBS | https://www.wellmark.com/ |
| UYX | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| UYZ | Blue Cross of Idaho | https://www.bcidaho.com/ |
| UZA | Prefix Not in Use | https://www.bcbs.com/member-services |
| UZB | Wellmark BCBS | https://www.wellmark.com/ |
| UZD | Blue Shield of California | https://blueshieldcaplans.com/ |
| UZE | Highmark BCBS | https://www.highmarkblueshield.com/home/ |
| UZF | Prefix Not in Use | https://www.bcbs.com/member-services |
| UZH | Wellmark BCBS | https://www.wellmark.com/ |
| UZI | Prefix Not in Use | https://www.bcbs.com/member-services |
| UZJ | Prefix Not in Use | https://www.bcbs.com/member-services |
| UZK | Wellmark BCBS | https://www.wellmark.com/ |
| UZL | BCBS of South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| UZM | BCBS of Louisiana | https://www.bcbsla.com/ |
| UZN | BCBS of Florida | https://www.floridablue.com/ |
| UZO | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| UZQ | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| UZR | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| UZS | BCBS of Texas | https://www.bcbstx.com/ |
| UZT | Anthem BCBS of Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| UZW | BCBS of Michigan | https://www.bcbsm.com/ |
| UZY | BCBS of Michigan | https://www.bcbsm.com/ |
| UZZ | BCBS of Texas | https://www.bcbstx.com/ |
