| NAA | No Prefix Assigned | N/A |
| NAB | Blue Cross Blue Shieldof Arkansas | http://www.arkansasbluecross.com/looking-for-insurance |
| NAC | Blue Cross Blue Shieldof Alabama | https://www.bcbsal.org/web/index.html |
| NAD | No Prefix Assigned | N/A |
| NAG | Blue Cross Blue Shieldof Western New York | https://www.bcbswny.com/ |
| NAI | Blue Cross Blue Shieldof Texas | https://www.bcbstx.com/ |
| NAK | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NAL | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NAM | Blue Cross of Idaho | https://www.bcidaho.com/ |
| NAN | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NAO | Blue Shield of California | https://blueshieldcaplans.com/ |
| NAP | No Prefix Assigned | N/A |
| NAR | Wellmark BCBS | https://www.wellmark.com/ |
| NAS | Regence | https://www.regence.com/member/home |
| NAT | Blue Cross Blue Shieldof South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| NAU | Excellus Blue Cross Blue Shieldof New York | https://www.excellusbcbs.com/ |
| NAV | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NAW | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NAX | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NAY | Premera Blue Cross | https://www.premera.com/visitor |
| NAZ | Blue Shield of California | https://blueshieldcaplans.com/ |
| NBA | Wellmark BCBS | https://www.wellmark.com/ |
| NBB | No Prefix Assigned | N/A |
| NBC | No Prefix Assigned | N/A |
| NBD | Wellmark BCBS | https://www.wellmark.com/ |
| NBE | Blue Cross Blue Shieldof Arizona | https://www.azblue.com/individualsandfamilies |
| NBF | No Prefix Assigned | N/A |
| NBG | No Prefix Assigned | N/A |
| NBI | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NBK | Blue Cross Blue Shieldof Nebraska | https://www.nebraskablue.com/ |
| NBL | No Prefix Assigned | N/A |
| NBM | Wellmark BCBS | https://www.wellmark.com/ |
| NBN | Wellmark BCBS | https://www.wellmark.com/ |
| NBO | Anthem Blue Cross Blue Shieldof Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| NBP | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NBR | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NBT | Blue Cross Blue Shieldof Arizona | https://www.azblue.com/individualsandfamilies |
| NBU | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NBW | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NBY | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NBZ | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NCA | Blue Cross Blue Shieldof Tennessee | https://www.bcbst.com/get-insurance/index.page |
| NCB | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NCC | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NCD | Highmark BCBS | https://www.highmarkbcbsde.com/home/ |
| NCE | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NCF | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NCH | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NCI | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NCJ | Blue Cross Blue Shieldof North Carolina | https://www.bluecrossnc.com/ |
| NCK | Blue Cross Blue Shieldof North Carolina | https://www.bluecrossnc.com/ |
| NCL | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NCM | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NCN | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NCP | No Prefix Assigned | N/A |
| NCQ | Highmark BCBS | https://www.highmarkbcbsde.com/home/ |
| NCR | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NCS | Blue Cross Blue Shieldof Arkansas | http://www.arkansasbluecross.com/looking-for-insurance |
| NCT | Premera Blue Cross | https://www.premera.com/visitor |
| NCU | No Prefix Assigned | N/A |
| NCV | Blue Shield of California | https://blueshieldcaplans.com/ |
| NCW | Premera Blue Cross | https://www.premera.com/visitor |
| NCY | No Prefix Assigned | N/A |
| NCZ | Premera Blue Cross | https://www.premera.com/visitor |
| NDB | Anthem Blue Cross Blue Shieldof Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| NDC | No Prefix Assigned | N/A |
| NDD | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NDE | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NDG | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NDH | No Prefix Assigned | N/A |
| NDI | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NDJ | No Prefix Assigned | N/A |
| NDK | Anthem Blue Cross Blue Shieldof New Hampshire | https://www.anthem.com/individual-and-family/health-insurance/new-hampshire/ |
| NDM | Anthem Blue Cross Blue Shieldof Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| NDO | Blue Shield of California | https://blueshieldcaplans.com/ |
| NDP | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NDR | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| NDS | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NDT | Anthem Blue Cross Blue Shieldof Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| NDU | No Prefix Assigned | N/A |
| NDV | No Prefix Assigned | N/A |
| NDY | Wellmark BCBS | https://www.wellmark.com/ |
| NEA | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NEB | Independence Blue Cross | https://www.ibx.com/index.jsp |
| NEC | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NED | Blue Cross Blue Shieldof Nebraska | https://www.nebraskablue.com/ |
| NEE | Blue Cross Blue Shieldof Western New York | https://www.bcbswny.com/ |
| NEF | Blue Cross Blue Shieldof Western New York | https://www.bcbswny.com/ |
| NEH | Anthem Blue Cross Blue Shieldof Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| NEI | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NEJ | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NEK | Blue Cross Blue Shieldof Tennessee | https://www.bcbst.com/get-insurance/index.page |
| NEL | Blue Cross Blue Shieldof Alabama | https://www.bcbsal.org/web/index.html |
| NEM | No Prefix Assigned | N/A |
| NEN | Blue Cross Blue Shieldof South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| NEO | Blue Cross Blue Shieldof Tennessee | https://www.bcbst.com/get-insurance/index.page |
| NEP | Blue Cross Blue Shieldof Minnesota | https://www.bluecrossmn.com/ |
| NES | Blue Cross Blue Shieldof Florida | https://www.floridablue.com/ |
| NEU | Blue Cross Blue Shieldof Minnesota | https://www.bluecrossmn.com/ |
| NEW | Blue Cross Blue Shieldof Alabama | https://www.bcbsal.org/web/index.html |
| NEX | Regence | https://www.regence.com/member/home |
| NEY | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NFA | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NFC | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NFD | Blue Cross Blue Shieldof Western New York | https://www.bcbswny.com/ |
| NFE | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NFF | Regence | https://www.regence.com/member/home |
| NFG | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NFH | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NFI | Blue Cross Blue Shieldof Vermont | https://www.bcbsvt.com/individual-insurance |
| NFJ | Excellus Blue Cross Blue Shieldof New York | https://www.excellusbcbs.com/ |
| NFK | Premera Blue Cross | https://www.premera.com/visitor |
| NFL | Blue Cross Blue Shieldof Western New York | https://www.bcbswny.com/ |
| NFM | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| NFN | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| NFO | Wellmark BCBS | https://www.wellmark.com/ |
| NFP | Blue Cross Blue Shieldof Western New York | https://www.bcbswny.com/ |
| NFQ | No Prefix Assigned | N/A |
| NFR | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NFS | Blue Cross Blue Shieldof Florida | https://www.floridablue.com/ |
| NFT | Blue Cross Blue Shieldof Western New York | https://www.bcbswny.com/ |
| NFU | No Prefix Assigned | N/A |
| NFV | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NFW | No Prefix Assigned | N/A |
| NFX | Premera Blue Cross | https://www.premera.com/visitor |
| NFY | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NFZ | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NGA | No Prefix Assigned | N/A |
| NGB | Blue Cross Blue Shieldof Florida | https://www.floridablue.com/ |
| NGC | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NGD | Blue Cross Blue Shieldof Florida | https://www.floridablue.com/ |
| NGE | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NGF | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NGG | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NGH | Anthem Blue Cross Blue Shieldof New Hampshire | https://www.anthem.com/individual-and-family/health-insurance/new-hampshire/ |
| NGI | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NGK | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NGL | Anthem Blue Cross Blue Shieldof New Hampshire | https://www.anthem.com/individual-and-family/health-insurance/new-hampshire/ |
| NGM | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NGN | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NGO | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NGP | Wellmark BCBS | https://www.wellmark.com/ |
| NGQ | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NGS | No Prefix Assigned | N/A |
| NGT | No Prefix Assigned | N/A |
| NGU | Blue Cross Blue Shieldof Western New York | https://www.bcbswny.com/ |
| NGX | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NGY | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NGZ | Wellmark BCBS | https://www.wellmark.com/ |
| NHA | Anthem Blue Cross Blue Shieldof New Hampshire | https://www.anthem.com/individual-and-family/health-insurance/new-hampshire/ |
| NHB | Blue Cross Blue Shieldof Alabama | https://www.bcbsal.org/web/index.html |
| NHC | Blue Cross Blue Shieldof Tennessee | https://www.bcbst.com/get-insurance/index.page |
| NHD | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NHE | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NHF | No Prefix Assigned | N/A |
| NHG | Capital Blue Cross | https://www.capbluecross.com/ |
| NHH | No Prefix Assigned | N/A |
| NHJ | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| NHK | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| NHL | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NHM | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NHN | Anthem Blue Cross Blue Shieldof New Hampshire | https://www.anthem.com/individual-and-family/health-insurance/new-hampshire/ |
| NHP | Anthem Blue Cross Blue Shieldof New Hampshire | https://www.anthem.com/individual-and-family/health-insurance/new-hampshire/ |
| NHQ | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NHR | Blue Cross Blue Shieldof Minnesota | https://www.bluecrossmn.com/ |
| NHS | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NHT | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NHV | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NHW | Unknown Assignment | https://www.bcbs.com/ |
| NHX | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NHY | Blue Cross Blue Shieldof Arizona | https://www.azblue.com/individualsandfamilies |
| NHZ | No Prefix Assigned | N/A |
| NIA | Anthem Blue Cross Blue Shieldof Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| NIC | Anthem Blue Cross Blue Shieldof Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| NIE | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NIF | No Prefix Assigned | N/A |
| NIG | No Prefix Assigned | N/A |
| NIH | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NII | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NIJ | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NIL | Anthem Blue Cross Blue Shieldof Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| NIM | No Prefix Assigned | N/A |
| NIN | Blue Cross Blue Shieldof Nebraska | https://www.nebraskablue.com/ |
| NIO | Wellmark BCBS | https://www.wellmark.com/ |
| NIP | Blue Shield of California | https://blueshieldcaplans.com/ |
| NIQ | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NIS | No Prefix Assigned | N/A |
| NIT | Anthem Blue Cross Blue Shieldof Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| NIY | Unknown Assignment | https://www.bcbs.com/ |
| NIZ | No Prefix Assigned | N/A |
| NJB | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| NJD | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NJE | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NJG | Blue Cross Blue Shieldof Texas | https://www.bcbstx.com/ |
| NJH | No Prefix Assigned | N/A |
| NJI | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NJJ | No Prefix Assigned | N/A |
| NJL | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NJM | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NJN | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NJP | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NJQ | Blue Cross Blue Shieldof South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| NJR | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NJS | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NJT | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NJU | Anthem Blue Cross Blue Shieldof Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| NJV | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NJX | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NJY | No Prefix Assigned | N/A |
| NJZ | Wellmark BCBS | https://www.wellmark.com/ |
| NKA | Blue Cross Blue Shieldof Minnesota | https://www.bluecrossmn.com/ |
| NKB | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NKE | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NKF | Blue Cross Blue Shieldof Alabama | https://www.bcbsal.org/web/index.html |
| NKG | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NKH | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NKI | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NKJ | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NKK | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NKL | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NKN | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NKO | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NKQ | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NKR | Anthem Blue Cross Blue Shieldof Indiana | https://www.anthem.com/individual-and-family/health-insurance/indiana/ |
| NKS | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NKT | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NKU | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NKW | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NKX | Blue Cross Blue Shieldof Tennessee | https://www.bcbst.com/get-insurance/index.page |
| NKY | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NLA | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NLB | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NLD | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NLE | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NLF | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NLG | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NLH | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NLI | Blue Cross Blue Shieldof Alabama | https://www.bcbsal.org/web/index.html |
| NLL | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NLM | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| NLN | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| NLQ | Premera Blue Cross | https://www.premera.com/visitor |
| NLR | Blue Cross Blue Shieldof Texas | https://www.bcbstx.com/ |
| NLS | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NLT | Blue Cross Blue Shieldof Texas | https://www.bcbstx.com/ |
| NLW | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NLY | No Prefix Assigned | N/A |
| NLZ | Premera Blue Cross | https://www.premera.com/visitor |
| NMA | Blue Cross Blue Shieldof Florida | https://www.floridablue.com/ |
| NMB | No Prefix Assigned | N/A |
| NMC | No Prefix Assigned | N/A |
| NME | Anthem Blue Cross Blue Shieldof Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| NMF | Blue Cross Blue Shieldof Florida | https://www.floridablue.com/ |
| NMG | No Prefix Assigned | N/A |
| NMH | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NMI | Regence | https://www.regence.com/member/home |
| NMJ | Unknown Assignment | https://www.bcbs.com/ |
| NMK | Unknown Assignment | https://www.bcbs.com/ |
| NML | Blue Cross Blue Shieldof South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| NMM | Unknown Assignment | https://www.bcbs.com/ |
| NMN | No Prefix Assigned | N/A |
| NMO | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NMP | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NMQ | Blue Cross Blue Shieldof Florida | https://www.floridablue.com/ |
| NMR | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NMS | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NMT | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NMU | Blue Cross Blue Shieldof Tennessee | https://www.bcbst.com/get-insurance/index.page |
| NMV | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NMW | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NMX | Anthem Blue Cross Blue Shieldof Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| NMZ | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NNA | Blue Cross Blue Shieldof Tennessee | https://www.bcbst.com/get-insurance/index.page |
| NNB | Blue Cross Blue Shieldof Tennessee | https://www.bcbst.com/get-insurance/index.page |
| NNC | Blue Cross of Idaho | https://www.bcidaho.com/ |
| NND | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NNF | Blue Cross Blue Shieldof Western New York | https://www.bcbswny.com/ |
| NNH | Anthem Blue Cross Blue Shieldof Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| NNI | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NNK | Blue Cross Blue Shieldof North Carolina | https://www.bluecrossnc.com/ |
| NNM | No Prefix Assigned | N/A |
| NNN | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NNP | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NNQ | Premera Blue Cross | https://www.premera.com/visitor |
| NNR | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| NNS | No Prefix Assigned | N/A |
| NNT | Premera Blue Cross | https://www.premera.com/visitor |
| NNU | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| NNW | Blue Cross Blue Shieldof Montana | https://www.bcbsmt.com/ |
| NNX | Highmark BCBS | https://www.highmarkblueshield.com/home/ |
| NNY | Premera Blue Cross | https://www.premera.com/visitor |
| NNZ | Anthem Blue Cross Blue Shieldof Virginia | https://www.anthem.com/individual-and-family/health-insurance/virginia/ |
| NOA | No Prefix Assigned | N/A |
| NOB | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NOC | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NOD | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NOE | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NOF | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NOG | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NOH | No Prefix Assigned | N/A |
| NOI | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NOL | Independence Blue Cross | https://www.ibx.com/index.jsp |
| NOO | Wellmark BCBS | https://www.wellmark.com/ |
| NOP | No Prefix Assigned | N/A |
| NOR | Blue Cross Blue Shieldof Arizona | https://www.azblue.com/individualsandfamilies |
| NOS | No Prefix Assigned | N/A |
| NOT | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NOU | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NOV | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NOW | No Prefix Assigned | N/A |
| NOX | No Prefix Assigned | N/A |
| NOY | Blue Shield of California | https://blueshieldcaplans.com/ |
| NOZ | No Prefix Assigned | N/A |
| NPA | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NPB | Regence | https://www.regence.com/member/home |
| NPC | Unknown Assignment | https://www.bcbs.com/ |
| NPD | Blue Cross Blue Shieldof Nebraska | https://www.nebraskablue.com/ |
| NPF | No Prefix Assigned | N/A |
| NPG | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NPH | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NPJ | Blue Cross Blue Shieldof Florida | https://www.floridablue.com/ |
| NPL | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NPM | No Prefix Assigned | N/A |
| NPP | Independence Blue Cross | https://www.ibx.com/index.jsp |
| NPQ | No Prefix Assigned | N/A |
| NPR | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NPS | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NPT | Blue Cross Blue Shieldof Alabama | https://www.bcbsal.org/web/index.html |
| NPX | Blue Cross Blue Shieldof Rhode Island | https://www.bcbsri.com/ |
| NPY | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NPZ | No Prefix Assigned | N/A |
| NQA | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NQB | No Prefix Assigned | N/A |
| NQD | Blue Cross Blue Shieldof Western New York | https://www.bcbswny.com/ |
| NQH | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NQI | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NQJ | No Prefix Assigned | N/A |
| NQK | No Prefix Assigned | N/A |
| NQL | Blue Cross Blue Shieldof Nebraska | https://www.nebraskablue.com/ |
| NQM | Anthem Blue Cross Blue Shieldof Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| NQN | Premera Blue Cross | https://www.premera.com/visitor |
| NQQ | Blue Cross Blue Shieldof Minnesota | https://www.bluecrossmn.com/ |
| NQR | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NQS | No Prefix Assigned | N/A |
| NQU | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NQV | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NQW | Blue Cross Blue Shieldof Minnesota | https://www.bluecrossmn.com/ |
| NQY | No Prefix Assigned | N/A |
| NQZ | No Prefix Assigned | N/A |
| NRA | Blue Cross Blue Shieldof Minnesota | https://www.bluecrossmn.com/ |
| NRB | Premera Blue Cross | https://www.premera.com/visitor |
| NRC | Blue Cross Blue Shieldof Minnesota | https://www.bluecrossmn.com/ |
| NRE | Blue Cross Blue Shieldof Rhode Island | https://www.bcbsri.com/ |
| NRF | No Prefix Assigned | N/A |
| NRG | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NRI | Blue Cross Blue Shieldof Nebraska | https://www.nebraskablue.com/ |
| NRJ | Anthem Blue Cross Blue Shieldof Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| NRK | Anthem Blue Cross Blue Shieldof Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| NRL | Premera Blue Cross | https://www.premera.com/visitor |
| NRM | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NRN | Blue Cross Blue Shieldof Nebraska | https://www.nebraskablue.com/ |
| NRO | Anthem Blue Cross Blue Shieldof Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| NRP | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NRQ | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NRR | Anthem Blue Cross Blue Shieldof Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| NRT | Anthem Blue Cross Blue Shieldof Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| NRW | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NRX | No Prefix Assigned | N/A |
| NRZ | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NSA | Anthem Blue Cross of California | https://www.anthem.com/ca/individual-and-family/health-insurance/california/ |
| NSB | Blue Shield of California | https://blueshieldcaplans.com/ |
| NSC | Blue Shield of California | https://blueshieldcaplans.com/ |
| NSD | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NSE | No Prefix Assigned | N/A |
| NSG | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NSH | No Prefix Assigned | N/A |
| NSI | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NSJ | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NSK | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NSL | Blue Shield of California | https://blueshieldcaplans.com/ |
| NSM | Wellmark BCBS | https://www.wellmark.com/ |
| NSN | No Prefix Assigned | N/A |
| NSP | No Prefix Assigned | N/A |
| NSQ | Wellmark BCBS | https://www.wellmark.com/ |
| NSS | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NST | No Prefix Assigned | N/A |
| NSU | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NSV | Wellmark BCBS | https://www.wellmark.com/ |
| NSW | Regence | https://www.regence.com/member/home |
| NSX | No Prefix Assigned | N/A |
| NSY | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NSZ | Blue Cross Blue Shieldof Tennessee | https://www.bcbst.com/get-insurance/index.page |
| NTA | Anthem Blue Cross Blue Shieldof New Hampshire | https://www.anthem.com/individual-and-family/health-insurance/new-hampshire/ |
| NTB | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NTC | No Prefix Assigned | N/A |
| NTD | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NTE | No Prefix Assigned | N/A |
| NTF | Premera Blue Cross | https://www.premera.com/visitor |
| NTG | Blue Shield of Northeastern New York | https://www.bsneny.com/ |
| NTH | No Prefix Assigned | N/A |
| NTI | Wellmark BCBS | https://www.wellmark.com/ |
| NTJ | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| NTK | No Prefix Assigned | N/A |
| NTL | No Prefix Assigned | N/A |
| NTM | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NTO | Wellmark BCBS | https://www.wellmark.com/ |
| NTP | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NTQ | Highmark BCBS | https://www.highmarkbcbs.com/home/ |
| NTR | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NTS | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NTT | Regence | https://www.regence.com/member/home |
| NTU | Blue Cross Blue Shieldof Alabama | https://www.bcbsal.org/web/index.html |
| NTV | Blue Shield of California | https://blueshieldcaplans.com/ |
| NTW | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NTY | Blue Cross Blue Shieldof North Carolina | https://www.bluecrossnc.com/ |
| NTZ | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NUA | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NUC | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NUD | Blue Cross Blue Shieldof Nebraska | https://www.nebraskablue.com/ |
| NUE | Blue Cross Blue Shieldof South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| NUF | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NUG | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NUH | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NUI | Regence | https://www.regence.com/member/home |
| NUJ | Premera Blue Cross | https://www.premera.com/visitor |
| NUK | Blue Cross Blue Shieldof Texas | https://www.bcbstx.com/ |
| NUM | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NUN | Independence Blue Cross | https://www.ibx.com/index.jsp |
| NUO | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NUQ | Blue Cross Blue Shieldof Massachusetts | https://home.bluecrossma.com/ |
| NUR | Anthem Blue Cross Blue Shieldof Indiana | https://www.anthem.com/individual-and-family/health-insurance/indiana/ |
| NUS | No Prefix Assigned | N/A |
| NUT | Blue Cross Blue Shieldof South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| NUU | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NUV | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NUW | No Prefix Assigned | N/A |
| NUZ | No Prefix Assigned | N/A |
| NVC | Regence | https://www.regence.com/member/home |
| NVD | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NVE | Wellmark BCBS | https://www.wellmark.com/ |
| NVF | No Prefix Assigned | N/A |
| NVG | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NVH | Premera Blue Cross | https://www.premera.com/visitor |
| NVI | Blue Cross Blue Shieldof Minnesota | https://www.bluecrossmn.com/ |
| NVJ | Anthem Blue Cross Blue Shieldof Wisconsin | https://www.anthem.com/individual-and-family/wisconsin/ |
| NVL | Blue Cross Blue Shieldof Texas | https://www.bcbstx.com/ |
| NVM | Wellmark BCBS | https://www.wellmark.com/ |
| NVO | Independence Blue Cross | https://www.ibx.com/index.jsp |
| NVP | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NVR | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NVS | No Prefix Assigned | N/A |
| NVU | Premera Blue Cross | https://www.premera.com/visitor |
| NVV | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NVY | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NVZ | Blue Cross Blue Shieldof Florida | https://www.floridablue.com/ |
| NWA | No Prefix Assigned | N/A |
| NWB | Premera Blue Cross | https://www.premera.com/visitor |
| NWC | Blue Cross Blue Shieldof Florida | https://www.floridablue.com/ |
| NWD | Anthem Blue Cross Blue Shieldof Colorado | https://www.anthem.com/individual-and-family/health-insurance/colorado/ |
| NWF | No Prefix Assigned | N/A |
| NWH | Regence | https://www.regence.com/member/home |
| NWJ | No Prefix Assigned | N/A |
| NWL | Blue Cross Blue Shieldof South Carolina | https://www.southcarolinablues.com/web/public/brands/sc/ |
| NWN | No Prefix Assigned | N/A |
| NWO | No Prefix Assigned | N/A |
| NWP | Blue Cross Blue Shieldof Minnesota | https://www.bluecrossmn.com/ |
| NWS | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NWT | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NWU | No Prefix Assigned | N/A |
| NWV | Premera Blue Cross | https://www.premera.com/visitor |
| NWW | Wellmark BCBS | https://www.wellmark.com/ |
| NWX | Blue Cross of Idaho | https://www.bcidaho.com/ |
| NWZ | No Prefix Assigned | N/A |
| NXA | Blue Cross Blue Shieldof Western New York | https://www.bcbswny.com/ |
| NXB | Anthem Blue Cross Blue Shieldof Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| NXC | Anthem Blue Cross Blue Shieldof Indiana | https://www.anthem.com/individual-and-family/health-insurance/indiana/ |
| NXD | Blue Cross Blue Shieldof Nebraska | https://www.nebraskablue.com/ |
| NXE | Anthem Blue Cross Blue Shieldof Connecticut | https://www.anthem.com/individual-and-family/health-insurance/connecticut/ |
| NXH | Blue Shield of California | https://blueshieldcaplans.com/ |
| NXL | Premera Blue Cross | https://www.premera.com/visitor |
| NXM | Blue Cross Blue Shieldof Texas | https://www.bcbstx.com/ |
| NXN | Blue Cross of Idaho | https://www.bcidaho.com/ |
| NXP | Blue Shield of California | https://blueshieldcaplans.com/ |
| NXQ | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NXS | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NXT | No Prefix Assigned | N/A |
| NXU | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NXV | No Prefix Assigned | N/A |
| NXW | Premera Blue Cross | https://www.premera.com/visitor |
| NXX | No Prefix Assigned | N/A |
| NXY | No Prefix Assigned | N/A |
| NXZ | Anthem Blue Cross Blue Shieldof Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| NYA | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NYB | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NYC | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NYD | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NYF | Blue Shield of Northeastern New York | https://www.bsneny.com/ |
| NYH | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NYI | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NYL | Carefirst Blue Cross Blue Shieldof Maryland | https://individual.carefirst.com/individuals-families/home.page |
| NYM | Horizon Blue Cross Blue Shieldof New Jersey | https://www.horizonblue.com/ |
| NYO | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NYQ | Anthem Blue Cross Blue Shieldof Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| NYR | Blue Cross Blue Shieldof Tennessee | https://www.bcbst.com/get-insurance/index.page |
| NYV | Anthem Blue Cross Blue Shieldof Ohio | https://www.anthem.com/individual-and-family/health-insurance/ohio |
| NYW | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NYX | Blue Cross Blue Shieldof Alabama | https://www.bcbsal.org/web/index.html |
| NYY | Empire Blue Cross Blue Shieldof New York | https://www.empireblue.com/ |
| NZA | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
| NZB | No Prefix Assigned | N/A |
| NZH | Blue Cross Blue Shieldof Michigan | https://www.bcbsm.com/ |
| NZI | Blue Cross Blue Shieldof Arizona | https://www.azblue.com/individualsandfamilies |
| NZJ | No Prefix Assigned | N/A |
| NZK | Independence Blue Cross | https://www.ibx.com/index.jsp |
| NZL | Wellmark BCBS | https://www.wellmark.com/ |
| NZM | Anthem Blue Cross Blue Shieldof Georgia | https://www.anthem.com/individual-and-family/health-insurance/georgia/ |
| NZT | Blue Cross Blue Shieldof Florida | https://www.floridablue.com/ |
| NZU | Blue Cross Blue Shieldof Nebraska | https://www.nebraskablue.com/ |
| NZV | Wellmark BCBS | https://www.wellmark.com/ |
| NZW | Blue Cross Blue Shieldof Tennessee | https://www.bcbst.com/get-insurance/index.page |
| NZX | No Prefix Assigned | N/A |
| NZY | Blue Cross Blue Shieldof Illinois | https://www.bcbsil.com/ |
