| RAB | BCBS of Florida | https://www.floridablue.com/ |
| RAC | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| RAD | Wellmark BCBS | https://www.wellmark.com/ |
| RAE | Prefix Not in Use | https://www.bcbs.com/member-services |
| RAF | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RAG | Wellmark BCBS | https://www.wellmark.com/ |
| RAH | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| RAK | Independence Blue Cross | https://www.ibx.com/index.jsp |
| RAM | BCBS of Texas | https://www.bcbstx.com/ |
| RAN | Wellmark BCBS | https://www.wellmark.com/ |
| RAP | Wellmark BCBS | https://www.wellmark.com/ |
| RAQ | Wellmark BCBS | https://www.wellmark.com/ |
| RAS | Blue Shield of California | https://blueshieldcaplans.com/ |
| RAT | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RAU | BCBS of South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| RAV | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| RAW | Prefix Not in Use | https://www.bcbs.com/member-services |
| RAX | BCBS of Western New York | https://www.bcbswny.com/ |
| RAY | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| RAZ | Blue Shield of California | https://blueshieldcaplans.com/ |
| RBA | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RBB | Blue Shield of California | https://blueshieldcaplans.com/ |
| RBC | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| RBD | Prefix Not in Use | https://www.bcbs.com/member-services |
| RBE | Wellmark BCBS | https://www.wellmark.com/ |
| RBF | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| RBG | BCBS of Illinois | https://www.bcbsil.com/ |
| RBH | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RBI | BCBS of Mississippi | https://www.bcbsms.com/ |
| RBJ | Blue Shield of California | https://blueshieldcaplans.com/ |
| RBK | BCBS of Florida | https://www.floridablue.com/ |
| RBL | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RBM | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| RBN | Prefix Not in Use | https://www.bcbs.com/member-services |
| RBO | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RBP | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| RBQ | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RBR | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| RBS | BCBS of Texas | https://www.bcbstx.com/ |
| RBT | BCBS of Illinois | https://www.bcbsil.com/ |
| RBU | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RBV | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| RBW | Blue Shield of Northeastern New York | https://www.bsneny.com/ |
| RBX | Prefix Not in Use | https://www.bcbs.com/member-services |
| RBZ | Blue Shield of Northeastern New York | https://www.bsneny.com/ |
| RCB | Blue Cross of Idaho | https://www.bcidaho.com/ |
| RCC | Empire BCBS of New York | https://www.empireblue.com/ |
| RCD | Prefix Not in Use | https://www.bcbs.com/member-services |
| RCE | BCBS of Western New York | https://www.bcbswny.com/ |
| RCG | Prefix Not in Use | https://www.bcbs.com/member-services |
| RCI | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| RCJ | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RCK | Wellmark BCBS | https://www.wellmark.com/ |
| RCL | BCBS of Tennessee | https://www.bcbst.com/get-insurance/index.page |
| RCM | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| RCN | Wellmark BCBS | https://www.wellmark.com/ |
| RCO | Prefix Not in Use | https://www.bcbs.com/member-services |
| RCP | Prefix Not in Use | https://www.bcbs.com/member-services |
| RCQ | BCBS of Texas | https://www.bcbstx.com/ |
| RCR | BCBS of Illinois | https://www.bcbsil.com/ |
| RCS | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| RCT | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| RCU | Prefix Not in Use | https://www.bcbs.com/member-services |
| RCV | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RCW | BCBS of Louisiana | https://www.bcbsla.com/ |
| RCX | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| RCZ | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| RDA | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RDB | BCBS of North Carolina | https://www.bluecrossnc.com/ |
| RDC | Prefix Not in Use | https://www.bcbs.com/member-services |
| RDE | Prefix Not in Use | https://www.bcbs.com/member-services |
| RDF | Empire BCBS of New York | https://www.empireblue.com/ |
| RDH | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RDI | Prefix Not in Use | https://www.bcbs.com/member-services |
| RDJ | Prefix Not in Use | https://www.bcbs.com/member-services |
| RDK | Regence | https://www.regence.com/member/home |
| RDL | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| RDM | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| RDO | BCBS of North Dakota | https://www.bcbsnd.com/ |
| RDP | Wellmark BCBS | https://www.wellmark.com/ |
| RDQ | Prefix Not in Use | https://www.bcbs.com/member-services |
| RDR | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| RDU | BCBS of North Carolina | https://www.bluecrossnc.com/ |
| RDW | Regence | https://www.regence.com/member/home |
| RDX | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RDY | Prefix Not in Use | https://www.bcbs.com/member-services |
| REB | Prefix Not in Use | https://www.bcbs.com/member-services |
| RED | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| REE | Prefix Not in Use | https://www.bcbs.com/member-services |
| REF | BCBS of Texas | https://www.bcbstx.com/ |
| REG | Wellmark BCBS | https://www.wellmark.com/ |
| REH | Prefix Not in Use | https://www.bcbs.com/member-services |
| REI | Blue Shield of California | https://blueshieldcaplans.com/ |
| REJ | BCBS of Michigan | https://www.bcbsm.com/ |
| REL | Blue Shield of California | https://blueshieldcaplans.com/ |
| REM | BCBS of Vermont | https://www.bcbsvt.com/individual-insurance |
| REN | BCBS of Michigan | https://www.bcbsm.com/ |
| REO | Prefix Not in Use | https://www.bcbs.com/member-services |
| REP | Empire BCBS of New York | https://www.empireblue.com/ |
| RER | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RES | Prefix Not in Use | https://www.bcbs.com/member-services |
| RET | BCBS of Texas | https://www.bcbstx.com/ |
| REU | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| REX | BCBS of Texas | https://www.bcbstx.com/ |
| REY | BCBS of Texas | https://www.bcbstx.com/ |
| REZ | Prefix Not in Use | https://www.bcbs.com/member-services |
| RFA | Unknown Assignment | https://www.bcbs.com/ |
| RFB | Empire BCBS of New York | https://www.empireblue.com/ |
| RFC | BCBS of Florida | https://www.floridablue.com/ |
| RFD | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| RFE | Prefix Not in Use | https://www.bcbs.com/member-services |
| RFF | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| RFG | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RFH | BCBS of Illinois | https://www.bcbsil.com/ |
| RFJ | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| RFK | BCBS of Illinois | https://www.bcbsil.com/ |
| RFL | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| RFM | Prefix Not in Use | https://www.bcbs.com/member-services |
| RFN | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RFP | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| RFT | Blue Shield of California | https://blueshieldcaplans.com/ |
| RFV | BCBS of Michigan | https://www.bcbsm.com/ |
| RFW | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| RFX | Blue Cross of Idaho | https://www.bcidaho.com/ |
| RFY | BCBS of Michigan | https://www.bcbsm.com/ |
| RFZ | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RGA | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RGD | Wellmark BCBS | https://www.wellmark.com/ |
| RGE | Wellmark BCBS | https://www.wellmark.com/ |
| RGF | BCBS of North Carolina | https://www.bluecrossnc.com/ |
| RGG | BCBS of Tennessee | https://www.bcbst.com/get-insurance/index.page |
| RGH | BCBS of Texas | https://www.bcbstx.com/ |
| RGI | BCBS of Michigan | https://www.bcbsm.com/ |
| RGJ | Premera Blue Cross | https://www.premera.com/visitor |
| RGL | BCBS of Illinois | https://www.bcbsil.com/ |
| RGM | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RGN | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| RGO | Regence | https://www.regence.com/member/home |
| RGQ | Prefix Not in Use | https://www.bcbs.com/member-services |
| RGR | BCBS of Illinois | https://www.bcbsil.com/ |
| RGS | Blue Cross of Idaho | https://www.bcidaho.com/ |
| RGT | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| RGU | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RGW | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| RGY | Independence Blue Cross | https://www.ibx.com/index.jsp |
| RGZ | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RHA | Blue Shield of California | https://blueshieldcaplans.com/ |
| RHD | Prefix Not in Use | https://www.bcbs.com/member-services |
| RHG | Prefix Not in Use | https://www.bcbs.com/member-services |
| RHH | BCBS of Texas | https://www.bcbstx.com/ |
| RHK | BCBS of Nebraska | https://www.nebraskablue.com/ |
| RHM | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| RHN | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| RHO | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| RHP | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RHQ | Regence | https://www.regence.com/member/home |
| RHS | Prefix Not in Use | https://www.bcbs.com/member-services |
| RHT | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RHU | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| RHV | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| RHY | BCBS of Illinois | https://www.bcbsil.com/ |
| RHZ | BCBS of Nebraska | https://www.nebraskablue.com/ |
| RIB | BCBS of Rhode Island | https://www.bcbsri.com/ |
| RIC | Prefix Not in Use | https://www.bcbs.com/member-services |
| RID | Independence Blue Cross | https://www.ibx.com/index.jsp |
| RIE | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| RIG | BCBS of Michigan | https://www.bcbsm.com/ |
| RIH | Highmark BCBS | https://www.highmarkblueshield.com/home/ |
| RII | Regence | https://www.regence.com/member/home |
| RIJ | Blue Shield of California | https://blueshieldcaplans.com/ |
| RIK | Wellmark BCBS | https://www.wellmark.com/ |
| RIM | Regence | https://www.regence.com/member/home |
| RIO | Prefix Not in Use | https://www.bcbs.com/member-services |
| RIP | Independence Blue Cross | https://www.ibx.com/index.jsp |
| RIQ | BCBS of Michigan | https://www.bcbsm.com/ |
| RIR | Highmark BCBS | https://www.highmarkblueshield.com/home/ |
| RIT | Independence Blue Cross | https://www.ibx.com/index.jsp |
| RIU | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RIW | Prefix Not in Use | https://www.bcbs.com/member-services |
| RIX | Prefix Not in Use | https://www.bcbs.com/member-services |
| RIY | BCBS of Florida | https://www.floridablue.com/ |
| RIZ | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| RJB | Prefix Not in Use | https://www.bcbs.com/member-services |
| RJC | Anthem BCBS of Kentucky | https://www.anthem.com/individual-and-family/health-insurance/kentucky/ |
| RJD | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RJF | Regence | https://www.regence.com/member/home |
| RJG | Independence Blue Cross | https://www.ibx.com/index.jsp |
| RJH | Wellmark BCBS | https://www.wellmark.com/ |
| RJI | Prefix Not in Use | https://www.bcbs.com/member-services |
| RJJ | Prefix Not in Use | https://www.bcbs.com/member-services |
| RJK | BCBS of Oklahoma | https://www.bcbsok.com/ |
| RJL | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| RJM | Prefix Not in Use | https://www.bcbs.com/member-services |
| RJN | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RJO | Prefix Not in Use | https://www.bcbs.com/member-services |
| RJP | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RJQ | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| RJR | Highmark BCBS | https://www.highmarkblueshield.com/home/ |
| RJS | BCBS of Florida | https://www.floridablue.com/ |
| RJT | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RJV | BCBS of Illinois | https://www.bcbsil.com/ |
| RJW | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RJY | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| RJZ | BCBS of Michigan | https://www.bcbsm.com/ |
| RKA | Blue Shield of California | https://blueshieldcaplans.com/ |
| RKB | Prefix Not in Use | https://www.bcbs.com/member-services |
| RKD | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| RKE | Wellmark BCBS | https://www.wellmark.com/ |
| RKF | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| RKG | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| RKH | BCBS of Illinois | https://www.bcbsil.com/ |
| RKI | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RKJ | Wellmark BCBS | https://www.wellmark.com/ |
| RKK | Prefix Not in Use | https://www.bcbs.com/member-services |
| RKL | Wellmark BCBS | https://www.wellmark.com/ |
| RKM | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| RKN | Prefix Not in Use | https://www.bcbs.com/member-services |
| RKO | Prefix Not in Use | https://www.bcbs.com/member-services |
| RKP | Wellmark BCBS | https://www.wellmark.com/ |
| RKR | Wellmark BCBS | https://www.wellmark.com/ |
| RKS | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| RKT | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| RKV | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| RKW | BCBS of Rhode Island | https://www.bcbsri.com/ |
| RKX | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| RKY | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RKZ | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| RLA | Independence Blue Cross | https://www.ibx.com/index.jsp |
| RLB | Prefix Not in Use | https://www.bcbs.com/member-services |
| RLC | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RLD | BCBS of Illinois | https://www.bcbsil.com/ |
| RLF | BCBS of Arkansas | http://www.arkansasbluecross.com/looking-for-insurance |
| RLG | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| RLH | Prefix Not in Use | https://www.bcbs.com/member-services |
| RLI | Independence Blue Cross | https://www.ibx.com/index.jsp |
| RLM | Prefix Not in Use | https://www.bcbs.com/member-services |
| RLN | BCBS of Illinois | https://www.bcbsil.com/ |
| RLO | BCBS of South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| RLR | BCBS of Illinois | https://www.bcbsil.com/ |
| RLS | Unknown Assignment | https://www.bcbs.com/ |
| RLT | BCBS of Rhode Island | https://www.bcbsri.com/ |
| RLU | BCBS of Western New York | https://www.bcbswny.com/ |
| RLV | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| RLW | Empire BCBS of New York | https://www.empireblue.com/ |
| RLX | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| RLY | Blue Shield of California | https://blueshieldcaplans.com/ |
| RLZ | BCBS of Illinois | https://www.bcbsil.com/ |
| RMA | Wellmark BCBS | https://www.wellmark.com/ |
| RMC | Excellus BCBS of New York | https://www.excellusbcbs.com/ |
| RMD | Anthem BCBS of Kentucky | https://www.anthem.com/individual-and-family/health-insurance/kentucky/ |
| RMF | BCBS of Michigan | https://www.bcbsm.com/ |
| RMG | BCBS of Tennessee | https://www.bcbst.com/get-insurance/index.page |
| RMH | BCBS of Michigan | https://www.bcbsm.com/ |
| RMI | Blue Cross of Idaho | https://www.bcidaho.com/ |
| RMM | BCBS of South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| RMO | BCBS of Western New York | https://www.bcbswny.com/ |
| RMQ | Premera Blue Cross | https://www.premera.com/visitor |
| RMR | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| RMS | Premera Blue Cross | https://www.premera.com/visitor |
| RMT | Regence | https://www.regence.com/member/home |
| RMU | Prefix Not in Use | https://www.bcbs.com/member-services |
| RMV | BCBS of Michigan | https://www.bcbsm.com/ |
| RMY | Prefix Not in Use | https://www.bcbs.com/member-services |
| RMZ | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| RNA | Capital Blue Cross | https://www.capbluecross.com/ |
| RNB | Regence | https://www.regence.com/member/home |
| RNC | Wellmark BCBS | https://www.wellmark.com/ |
| RND | BCBS of Illinois | https://www.bcbsil.com/ |
| RNF | Anthem BCBS of Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| RNI | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RNL | BCBS of Louisiana | https://www.bcbsla.com/ |
| RNN | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| RNO | Independence Blue Cross | https://www.ibx.com/index.jsp |
| RNP | BCBS of Illinois | https://www.bcbsil.com/ |
| RNQ | Wellmark BCBS | https://www.wellmark.com/ |
| RNR | Prefix Not in Use | https://www.bcbs.com/member-services |
| RNS | Prefix Not in Use | https://www.bcbs.com/member-services |
| RNT | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| RNW | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RNX | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| RNZ | Blue Shield of California | https://blueshieldcaplans.com/ |
| ROA | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| ROD | Capital Blue Cross | https://www.capbluecross.com/ |
| ROF | BCBS of Illinois | https://www.bcbsil.com/ |
| ROG | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| ROH | Prefix Not in Use | https://www.bcbs.com/member-services |
| ROI | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| ROJ | Prefix Not in Use | https://www.bcbs.com/member-services |
| ROL | Prefix Not in Use | https://www.bcbs.com/member-services |
| ROM | Prefix Not in Use | https://www.bcbs.com/member-services |
| ROO | Independence Blue Cross | https://www.ibx.com/index.jsp |
| ROP | Blue Shield of California | https://blueshieldcaplans.com/ |
| ROR | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| ROS | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| ROT | Prefix Not in Use | https://www.bcbs.com/member-services |
| ROU | BCBS of Michigan | https://www.bcbsm.com/ |
| ROV | BCBS of Western New York | https://www.bcbswny.com/ |
| ROW | Anthem BCBS of Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| ROY | BCBS of Florida | https://www.floridablue.com/ |
| ROZ | Anthem BCBS of Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| RPA | Regence | https://www.regence.com/member/home |
| RPB | Prefix Not in Use | https://www.bcbs.com/member-services |
| RPC | BCBS of Michigan | https://www.bcbsm.com/ |
| RPE | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| RPF | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| RPG | Blue Shield of California | https://blueshieldcaplans.com/ |
| RPI | Highmark BCBS | https://www.highmarkblueshield.com/home/ |
| RPL | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| RPM | Premera Blue Cross | https://www.premera.com/visitor |
| RPN | BCBS of North Carolina | https://www.bluecrossnc.com/ |
| RPP | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RPQ | Prefix Not in Use | https://www.bcbs.com/member-services |
| RPR | Wellmark BCBS | https://www.wellmark.com/ |
| RPS | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| RPT | BCBS of Western New York | https://www.bcbswny.com/ |
| RPV | Empire BCBS of New York | https://www.empireblue.com/ |
| RPW | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RPX | BCBS of Illinois | https://www.bcbsil.com/ |
| RPY | BCBS of Arkansas | http://www.arkansasbluecross.com/looking-for-insurance |
| RPZ | BCBS of Louisiana | https://www.bcbsla.com/ |
| RQA | Wellmark BCBS | https://www.wellmark.com/ |
| RQC | BCBS of Illinois | https://www.bcbsil.com/ |
| RQG | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| RQI | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| RQJ | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RQK | Prefix Not in Use | https://www.bcbs.com/member-services |
| RQL | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RQM | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| RQN | Prefix Not in Use | https://www.bcbs.com/member-services |
| RQO | BCBS of Michigan | https://www.bcbsm.com/ |
| RQQ | Prefix Not in Use | https://www.bcbs.com/member-services |
| RQR | Wellmark BCBS | https://www.wellmark.com/ |
| RQS | Blue Cross of Idaho | https://www.bcidaho.com/ |
| RQU | Wellmark BCBS | https://www.wellmark.com/ |
| RQY | Prefix Not in Use | https://www.bcbs.com/member-services |
| RRA | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RRC | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| RRD | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| RRE | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RRF | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RRH | Prefix Not in Use | https://www.bcbs.com/member-services |
| RRJ | BCBS of Illinois | https://www.bcbsil.com/ |
| RRN | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| RRP | Regence | https://www.regence.com/member/home |
| RRR | Prefix Not in Use | https://www.bcbs.com/member-services |
| RRS | BCBS of Illinois | https://www.bcbsil.com/ |
| RRT | Regence | https://www.regence.com/member/home |
| RRU | BCBS of Western New York | https://www.bcbswny.com/ |
| RRV | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RRW | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| RRX | Prefix Not in Use | https://www.bcbs.com/member-services |
| RRY | BCBS of Texas | https://www.bcbstx.com/ |
| RRZ | Wellmark BCBS | https://www.wellmark.com/ |
| RSB | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RSD | BCBS of Vermont | https://www.bcbsvt.com/individual-insurance |
| RSF | Prefix Not in Use | https://www.bcbs.com/member-services |
| RSG | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| RSH | BCBS of Western New York | https://www.bcbswny.com/ |
| RSI | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| RSJ | BCBS of Michigan | https://www.bcbsm.com/ |
| RSK | BCBS of South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| RSL | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| RSM | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| RSO | Blue Shield of California | https://blueshieldcaplans.com/ |
| RSP | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RSR | BCBS of Illinois | https://www.bcbsil.com/ |
| RSU | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| RSV | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| RTA | BCBS of North Carolina | https://www.bluecrossnc.com/ |
| RTB | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| RTC | BCBS of Florida | https://www.floridablue.com/ |
| RTD | Anthem BCBS of Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| RTE | BCBS of North Carolina | https://www.bluecrossnc.com/ |
| RTF | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RTG | BCBS of Tennessee | https://www.bcbst.com/get-insurance/index.page |
| RTH | BCBS of Michigan | https://www.bcbsm.com/ |
| RTI | Wellmark BCBS | https://www.wellmark.com/ |
| RTJ | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| RTK | BCBS of Florida | https://www.floridablue.com/ |
| RTL | BCBS of Florida | https://www.floridablue.com/ |
| RTM | Prefix Not in Use | https://www.bcbs.com/member-services |
| RTN | BCBS of Illinois | https://www.bcbsil.com/ |
| RTO | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| RTQ | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| RTR | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| RTS | Wellmark BCBS | https://www.wellmark.com/ |
| RTT | BCBS of South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| RTU | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| RTV | Prefix Not in Use | https://www.bcbs.com/member-services |
| RTW | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RTX | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| RTY | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| RTZ | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| RUA | Wellmark BCBS | https://www.wellmark.com/ |
| RUB | BCBS of Texas | https://www.bcbstx.com/ |
| RUC | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| RUD | Wellmark BCBS | https://www.wellmark.com/ |
| RUE | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| RUF | Wellmark BCBS | https://www.wellmark.com/ |
| RUG | Horizon BCBS of New Jersey | https://www.horizonblue.com/ |
| RUH | Prefix Not in Use | https://www.bcbs.com/member-services |
| RUI | Prefix Not in Use | https://www.bcbs.com/member-services |
| RUJ | Premera Blue Cross | https://www.premera.com/visitor |
| RUK | Prefix Not in Use | https://www.bcbs.com/member-services |
| RUL | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| RUN | Prefix Not in Use | https://www.bcbs.com/member-services |
| RUO | Wellmark BCBS | https://www.wellmark.com/ |
| RUP | Wellmark BCBS | https://www.wellmark.com/ |
| RUQ | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| RUS | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| RUU | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| RUV | BCBS of Illinois | https://www.bcbsil.com/ |
| RUX | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| RUY | Prefix Not in Use | https://www.bcbs.com/member-services |
| RUZ | Prefix Not in Use | https://www.bcbs.com/member-services |
| RVA | BCBS of Western New York | https://www.bcbswny.com/ |
| RVB | BCBS of South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| RVC | BCBS of Illinois | https://www.bcbsil.com/ |
| RVE | BCBS of Illinois | https://www.bcbsil.com/ |
| RVF | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| RVG | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RVH | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| RVJ | Wellmark BCBS | https://www.wellmark.com/ |
| RVK | Prefix Not in Use | https://www.bcbs.com/member-services |
| RVL | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RVM | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| RVN | Prefix Not in Use | https://www.bcbs.com/member-services |
| RVO | Blue Shield of California | https://blueshieldcaplans.com/ |
| RVR | Premera Blue Cross | https://www.premera.com/visitor |
| RVS | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RVT | Prefix Not in Use | https://www.bcbs.com/member-services |
| RVV | Prefix Not in Use | https://www.bcbs.com/member-services |
| RVW | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| RWA | BCBS of Texas | https://www.bcbstx.com/ |
| RWB | Empire BCBS of New York | https://www.empireblue.com/ |
| RWE | Prefix Not in Use | https://www.bcbs.com/member-services |
| RWF | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| RWG | Regence | https://www.regence.com/member/home |
| RWH | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| RWI | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| RWJ | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| RWK | Carefirst BCBS of Maryland | https://individual.carefirst.com/individuals-families/home.page |
| RWL | BCBS of Massachusetts | https://home.bluecrossma.com/ |
| RWN | Prefix Not in Use | https://www.bcbs.com/member-services |
| RWP | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| RWQ | Prefix Not in Use | https://www.bcbs.com/member-services |
| RWR | Wellmark BCBS | https://www.wellmark.com/ |
| RWS | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| RWT | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| RWU | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| RWV | Anthem BCBS of Missouri | https://www.anthem.com/individual-and-family/health-insurance/missouri/ |
| RWW | Prefix Not in Use | https://www.bcbs.com/member-services |
| RXA | BCBS of Texas | https://www.bcbstx.com/ |
| RXH | Prefix Not in Use | https://www.bcbs.com/member-services |
| RXI | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| RXJ | Prefix Not in Use | https://www.bcbs.com/member-services |
| RXL | Prefix Not in Use | https://www.bcbs.com/member-services |
| RXM | Highmark BCBS | https://www.highmarkblueshield.com/home/ |
| RXP | BCBS of Minnesota | https://www.bluecrossmn.com/ |
| RXQ | Prefix Not in Use | https://www.bcbs.com/member-services |
| RXS | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RXT | BCBS of Michigan | https://www.bcbsm.com/ |
| RXV | Prefix Not in Use | https://www.bcbs.com/member-services |
| RXW | Capital Blue Cross | https://www.capbluecross.com/ |
| RXY | Prefix Not in Use | https://www.bcbs.com/member-services |
| RYB | Independence Blue Cross | https://www.ibx.com/index.jsp |
| RYC | Prefix Not in Use | https://www.bcbs.com/member-services |
| RYF | BCBS of Illinois | https://www.bcbsil.com/ |
| RYG | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RYH | Prefix Not in Use | https://www.bcbs.com/member-services |
| RYI | Regence | https://www.regence.com/member/home |
| RYL | Anthem BCBS of Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| RYM | Blue Shield of California | https://blueshieldcaplans.com/ |
| RYN | Blue Shield of California | https://blueshieldcaplans.com/ |
| RYO | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RYP | Anthem BCBS of Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| RYQ | BCBS of Florida | https://www.floridablue.com/ |
| RYR | BCBS of Michigan | https://www.bcbsm.com/ |
| RYS | Prefix Not in Use | https://www.bcbs.com/member-services |
| RYU | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| RYW | Prefix Not in Use | https://www.bcbs.com/member-services |
| RYY | Prefix Not in Use | https://www.bcbs.com/member-services |
| RYZ | Prefix Not in Use | https://www.bcbs.com/member-services |
| RZA | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RZB | BCBS of Illinois | https://www.bcbsil.com/ |
| RZC | Empire BCBS of New York | https://www.empireblue.com/ |
| RZE | BCBS of Illinois | https://www.bcbsil.com/ |
| RZG | Premera Blue Cross | https://www.premera.com/visitor |
| RZH | Wellmark BCBS | https://www.wellmark.com/ |
| RZJ | Prefix Not in Use | https://www.bcbs.com/member-services |
| RZK | BCBS of Illinois | https://www.bcbsil.com/ |
| RZO | Blue Shield of California | https://blueshieldcaplans.com/ |
| RZP | BCBS of Alabama | https://www.bcbsal.org/web/index.html |
| RZQ | Prefix Not in Use | https://www.bcbs.com/member-services |
| RZS | Prefix Not in Use | https://www.bcbs.com/member-services |
| RZT | Anthem BCBS of Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| RZU | BCBS of Illinois | https://www.bcbsil.com/ |
| RZV | Anthem BCBS of Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| RZX | Prefix Not in Use | https://www.bcbs.com/member-services |
