In this article, we will focus on the BCBS alpha prefix NAA-NZZ, shed light on the significance of BCBS prefixes, and explore the concept of BCBS prefix lookup.
BCBS prefix list from NAA to NZZ there are total of 676 alpha prefixes and 51 are Not Assigned prefixes out of 676.
| BCBS Prefix 2024 | BCBS Plan Name |
|---|---|
| NAA | Wellmark BCBS |
| NAB | BCBSArkansas Blue Advantage |
| NAC | BCBSAlabama |
| NAD | BCBSTennessee |
| NAE | Wellmark BCBS |
| NAF | BCBSAlabama |
| NAG | BCBSWestern New York |
| NAH | Anthem BCBSVirginia |
| NAI | BCBSTexas |
| NAJ | Anthem BCBSKentucky |
| NAK | Carefirst BCBSMaryland |
| NAL | BCBSMichigan |
| NAM | Blue Cross of Idaho |
| NAN | BCBSMassachusetts |
| NAO | Blue Shield of California |
| NAP | Highmark BCBS |
| NAQ | Not Assigned Prefix |
| NAR | Wellmark BCBS |
| NAS | Regence BCBSWashington |
| NAT | Horizon BCBSNew Jersey |
| NAU | Excellus BCBSNew York |
| NAV | BCBSMassachusetts |
| NAW | BCBSMichigan |
| NAX | BCBSMichigan |
| NAY | Premera Blue Cross |
| NAZ | Blue Shield of California |
| NBA | Wellmark BCBS |
| NBB | Regence Blue Cross Blue Shield of Oregon |
| NBC | BCBSDelaware |
| NBD | Wellmark BCBS |
| NBE | BCBSArizona |
| NBF | Blue Shield of California |
| NBG | Anthem Blue Cross of California |
| NBH | Anthem BCBSWisconsin |
| NBI | BCBSMichigan |
| NBJ | Not Assigned Prefix |
| NBK | BCBSNebraska |
| NBL | BCBSTennessee |
| NBM | Wellmark BCBS |
| NBN | BCBSNebraska |
| NBO | Anthem BCBSColorado |
| NBP | Empire BCBSNew York |
| NBQ | BCBSNorth Carolina |
| NBR | BCBSIllinois |
| NBS | Not Assigned Prefix |
| NBT | Excellus BCBSNew York |
| NBU | BCBSMichigan |
| NBV | Not Assigned Prefix |
| NBW | BCBSIllinois |
| NBX | Anthem BCBSVirginia |
| NBY | BCBSMassachusetts |
| NBZ | Horizon BCBSNew Jersey |
| NCA | BCBSTennessee |
| NCB | BCBSIllinois |
| NCC | Not Assigned Prefix |
| NCD | BCBSDelaware |
| NCE | BCBSMichigan |
| NCF | Anthem Blue Cross of California |
| NCG | Wellmark BCBS |
| NCH | BCBSMichigan |
| NCI | BCBSIllinois |
| NCJ | BCBSNorth Carolina |
| NCK | BCBSNorth Carolina |
| NCL | Horizon BCBSNew Jersey |
| NCM | Empire BCBSNew York |
| NCN | BCBSIllinois |
| NCO | Blue Shield of California |
| NCP | BCBSNorth Carolina |
| NCQ | BCBSDelaware |
| NCR | BCBSNorth Carolina |
| NCS | BCBSArkansas Blue Advantage |
| NCT | Premera Blue Cross |
| NCU | Horizon BCBSNew Jersey |
| NCV | Blue Shield of California |
| NCW | Premera Blue Cross |
| NCX | BCBSIllinois |
| NCY | BCBSIllinois |
| NCZ | Premera Blue Cross |
| NDA | Not Assigned Prefix |
| NDB | Anthem BCBSWisconsin |
| NDC | Not Assigned Prefix |
| NDD | Horizon BCBSNew Jersey |
| NDE | BCBSMichigan |
| NDF | Anthem BCBSIndiana |
| NDG | Anthem Blue Cross of California |
| NDH | Not Assigned Prefix |
| NDI | Carefirst BCBSMaryland |
| NDJ | BCBSTexas |
| NDK | Anthem BCBSNew Hampshire |
| NDL | Not Assigned Prefix |
| NDM | Anthem BCBSWisconsin |
| NDN | Not Assigned Prefix |
| NDO | Blue Shield of California |
| NDP | Carefirst Administrators |
| NDQ | Blue Shield of California |
| NDR | Highmark BCBS |
| NDS | Not Assigned Prefix |
| NDT | Anthem Blue Cross of California |
| NDU | Anthem Blue Cross of California |
| NDV | Anthem Blue Cross of California |
| NDW | Not Assigned Prefix |
| NDX | Not Assigned Prefix |
| NDY | Wellmark BCBS |
| NDZ | Not Assigned Prefix |
| NEA | BCBSIllinois |
| NEB | Horizon BCBSNew Jersey |
| NEC | BCBSIllinois |
| NED | BCBSNebraska |
| NEE | BCBSWestern New York |
| NEF | BCBSWestern New York |
| NEG | BCBSFlorida |
| NEH | Not Assigned Prefix |
| NEI | BCBSIllinois |
| NEJ | Not Assigned Prefix |
| NEK | BCBSTennessee |
| NEL | BCBSAlabama |
| NEM | BCBSDelaware |
| NEN | BCBSSouth Carolina |
| NEO | Not Assigned Prefix |
| NEP | BCBSMinnesota |
| NEQ | BCBSNebraska |
| NER | Regence BCBS |
| NES | BCBSSouth Carolina |
| NET | Anthem BCBSConnecticut |
| NEU | BCBSMinnesota |
| NEV | Anthem BCBSKentucky |
| NEW | BCBSAlabama |
| NEX | Regence BCBSOregon |
| NEY | Not Assigned Prefix |
| NEZ | BCBSTennessee |
| NFA | BCBSIllinois |
| NFB | BCBSWestern New York |
| NFC | Horizon BCBSNew Jersey |
| NFD | BCBSWestern New York |
| NFE | Horizon BCBSNew Jersey |
| NFF | Regence BCBS |
| NFG | BCBSIllinois |
| NFH | Carefirst Administrators |
| NFI | BCBSVermont |
| NFJ | Excellus BCBSNew York |
| NFK | Premera Blue Cross |
| NFL | BCBSWestern New York |
| NFM | Highmark BCBS |
| NFN | Highmark BCBS |
| NFO | Wellmark BCBS |
| NFP | BCBSWestern New York |
| NFQ | BCBSWestern New York |
| NFR | Carefirst Administrators |
| NFS | BCBSFlorida |
| NFT | BCBSWestern New York |
| NFU | BCBSNorth Carolina |
| NFV | Carefirst BCBSMaryland |
| NFW | Horizon BCBSNew Jersey |
| NFX | Premera Blue Cross |
| NFY | Carefirst BCBSMaryland |
| NFZ | BCBSMassachusetts |
| NGA | Horizon BCBSNew Jersey |
| NGB | BCBSSouth Carolina |
| NGC | BCBSIllinois |
| NGD | BCBSSouth Carolina |
| NGE | BCBSMassachusetts |
| NGF | BCBSMassachusetts |
| NGG | Anthem BCBSVirginia |
| NGH | Anthem BCBSNew Hampshire |
| NGI | BCBSMassachusetts |
| NGJ | Not Assigned Prefix |
| NGK | BCBSMassachusetts |
| NGL | Anthem BCBSNew Hampshire |
| NGM | Anthem Blue Cross of California |
| NGN | BCBSMassachusetts |
| NGO | Anthem Blue Cross of California |
| NGP | Wellmark BCBS |
| NGQ | Carefirst BCBSMaryland |
| NGR | BCBSMichigan |
| NGS | Anthem BCBSVirginia |
| NGT | Blue Shield of California |
| NGU | BCBSWestern New York |
| NGV | Anthem BCBSOhio |
| NGW | Blue Shield of California |
| NGX | BCBSIllinois |
| NGY | BCBSMassachusetts |
| NGZ | Wellmark BCBS |
| NHA | Anthem BCBSNew Hampshire |
| NHB | BCBSAlabama |
| NHC | BCBSTennessee |
| NHD | Anthem BCBSOhio |
| NHE | Anthem Blue Cross of California |
| NHF | BCBSAlabama |
| NHG | Capital Blue Cross |
| NHH | Blue Shield of California |
| NHI | BCBSMassachusetts |
| NHJ | Highmark BCBS |
| NHK | Highmark BCBS |
| NHL | Horizon BCBSNew Jersey |
| NHM | BCBSMassachusetts |
| NHN | Anthem BCBSNew Hampshire |
| NHO | Blue Shield of California |
| NHP | Anthem BCBSNew Hampshire |
| NHQ | Carefirst Administrators |
| NHR | BCBSMinnesota |
| NHS | Carefirst BCBSMaryland |
| NHT | BCBSMichigan |
| NHU | Capital Blue Cross |
| NHV | Horizon BCBSNew Jersey |
| NHW | BCBSKansas City |
| NHX | Horizon BCBSNew Jersey |
| NHY | BCBSArizona |
| NHZ | Not Assigned Prefix |
| NIA | Anthem BCBSWisconsin |
| NIB | Not Assigned Prefix |
| NIC | Anthem Blue Cross of California |
| NID | Regence BCBS |
| NIE | Anthem BCBSCalifornia |
| NIF | Not Assigned Prefix |
| NIG | Not Assigned Prefix |
| NIH | BCBSMassachusetts |
| NII | Horizon BCBSNew Jersey |
| NIJ | Anthem BCBSOhio |
| NIK | Not Assigned Prefix |
| NIL | Anthem Blue Cross of California |
| NIM | Wellmark BCBS |
| NIN | BCBSNebraska |
| NIO | Wellmark BCBS |
| NIP | Blue Shield of California |
| NIQ | Anthem BCBSOhio |
| NIR | Independence Blue Cross |
| NIS | Not Assigned Prefix |
| NIT | BCBSGeorgia |
| NIU | BCBSFlorida |
| NIV | Anthem Blue Cross of California |
| NIW | Empire BCBSNew York |
| NIX | Empire BCBSNew York |
| NIY | BCBSKansas City |
| NIZ | Blue Shield of California |
| NJA | Anthem BCBSGeorgia |
| NJB | Highmark BCBS |
| NJC | Anthem BCBSOhio |
| NJD | Horizon BCBSNew Jersey |
| NJE | Horizon BCBSNew Jersey |
| NJF | BCBSIllinois |
| NJG | BCBSTexas |
| NJH | Horizon BCBSNew Jersey |
| NJI | Horizon BCBSNew Jersey |
| NJJ | Horizon BCBSNew Jersey |
| NJK | Anthem BCBSOhio |
| NJL | BCBSMichigan |
| NJM | Anthem Blue Cross of California |
| NJN | Horizon BCBSNew Jersey |
| NJO | Horizon BCBSNew Jersey |
| NJP | Horizon BCBSNew Jersey |
| NJQ | BCBSSouth Carolina |
| NJR | Horizon BCBSNew Jersey |
| NJS | Horizon BCBSNew Jersey |
| NJT | Horizon BCBSNew Jersey |
| NJU | BCBSIllinois |
| NJV | BCBSMichigan |
| NJW | Not Assigned Prefix |
| NJX | Horizon BCBSNew Jersey |
| NJY | BCBSAlabama |
| NJZ | Wellmark BCBS |
| NKA | BCBSMinnesota |
| NKB | Anthem Blue Cross of California |
| NKC | Not Assigned Prefix |
| NKD | Not Assigned Prefix |
| NKE | Anthem BCBSOhio |
| NKF | BCBSAlabama |
| NKG | Horizon BCBSNew Jersey |
| NKH | Horizon BCBSNew Jersey |
| NKI | Anthem BCBSOhio |
| NKJ | BCBSMichigan |
| NKK | BCBSMichigan |
| NKL | BCBSIllinois |
| NKM | BCBSTennessee |
| NKN | Anthem Blue Cross of California |
| NKO | Horizon BCBSNew Jersey |
| NKP | Carefirst BCBSMaryland |
| NKQ | BCBSMichigan |
| NKR | Anthem BCBSIndiana |
| NKS | BCBSMichigan |
| NKT | BCBSIllinois |
| NKU | Carefirst BCBSMaryland |
| NKV | BCBSMassachusetts |
| NKW | Anthem BCBSOhio |
| NKX | BCBSTennessee |
| NKY | BCBSMichigan |
| NKZ | Not Assigned Prefix |
| NLA | BCBSMichigan |
| NLB | BCBSIllinois |
| NLC | BCBSKansas City |
| NLD | Horizon BCBSNew Jersey |
| NLE | Horizon BCBSNew Jersey |
| NLF | Not Assigned Prefix |
| NLG | Horizon BCBSNew Jersey |
| NLH | BCBSMichigan |
| NLI | BCBSAlabama |
| NLJ | Carefirst BCBSMaryland |
| NLK | Anthem BCBSOhio |
| NLL | BCBSIllinois |
| NLM | Highmark BCBS |
| NLN | Highmark BCBS |
| NLO | Carefirst BCBSMaryland |
| NLP | Blue Shield of California |
| NLQ | Premera Blue Cross |
| NLR | BCBSTexas |
| NLS | Horizon BCBSNew Jersey |
| NLT | BCBSTexas |
| NLU | BCBSMassachusetts |
| NLV | Carefirst BCBSMaryland |
| NLW | BCBSIllinois |
| NLX | Premera Blue Cross |
| NLY | Not Assigned Prefix |
| NLZ | Premera Blue Cross |
| NMA | BCBSSouth Carolina |
| NMB | Not Assigned Prefix |
| NMC | Wellmark BCBS |
| NMD | BCBSKansas City |
| NME | BCBSGeorgia |
| NMF | BCBSSouth Carolina |
| NMG | BCBSSouth Carolina |
| NMH | Anthem BCBSOhio |
| NMI | Regence BCBS |
| NMJ | BCBSNew Mexico |
| NMK | BCBSNew Mexico |
| NML | BCBSSouth Carolina |
| NMM | BCBSNew Mexico |
| NMN | BCBSMinnesota |
| NMO | Horizon BCBSNew Jersey |
| NMP | BCBSIllinois |
| NMQ | Not Assigned Prefix |
| NMR | Horizon BCBSNew Jersey |
| NMS | Carefirst BCBSMaryland |
| NMT | BCBSIllinois |
| NMU | BCBSTennessee |
| NMV | Empire BCBSNew York |
| NMW | BCBSIllinois |
| NMX | Anthem BCBSColorado |
| NMY | Anthem BCBSNew Hampshire |
| NMZ | Not Assigned Prefix |
| NNA | BCBSTennessee |
| NNB | BCBSTennessee |
| NNC | Blue Cross Idaho |
| NND | BCBSMassachusetts |
| NNE | BCBSMassachusetts |
| NNF | BCBSWestern New York |
| NNG | BCBSArizona |
| NNH | Anthem BCBSVirginia |
| NNI | Horizon BCBSNew Jersey |
| NNJ | BCBSArizona |
| NNK | Premera Blue Cross |
| NNL | Not Assigned Prefix |
| NNM | Not Assigned Prefix |
| NNN | BCBSIllinois |
| NNO | BCBSNorth Carolina |
| NNP | BCBSIllinois |
| NNQ | Premera Blue Cross |
| NNR | Highmark BCBS |
| NNS | Anthem BCBSVirginia |
| NNT | Premera Blue Cross |
| NNU | Blue Cross of Northeast Pennsylvania |
| NNV | Wellmark BCBS |
| NNW | BCBSMontana |
| NNX | Highmark BCBS |
| NNY | Premera Blue Cross |
| NNZ | Anthem BCBSVirginia |
| NOA | BCBSNorth Dakota |
| NOB | Horizon BCBSNew Jersey |
| NOC | Horizon BCBSNew Jersey |
| NOD | Horizon BCBSNew Jersey |
| NOE | Anthem Blue Cross of California |
| NOF | BCBSMichigan |
| NOG | BCBSMichigan |
| NOH | Anthem BCBSColorado |
| NOI | Anthem BCBSOhio |
| NOJ | Not Assigned Prefix |
| NOK | Not Assigned Prefix |
| NOL | Independence Blue Cross |
| NOM | Not Assigned Prefix |
| NON | BCBSNorth Carolina |
| NOO | Wellmark BCBS |
| NOP | BCBSNorth Dakota |
| NOQ | Blue Cross of Idaho |
| NOR | BCBSArizona |
| NOS | Anthem Blue Cross of California |
| NOT | Anthem BCBSOhio |
| NOU | Anthem Blue Cross of California |
| NOV | Horizon BCBSNew Jersey |
| NOW | Blue Shield of California |
| NOX | Not Assigned Prefix |
| NOY | Blue Shield of California |
| NOZ | Blue Cross of Idaho |
| NPA | Carefirst Administrators |
| NPB | Regence Blue Cross Blue Shield of Oregon |
| NPC | BCBSSouth Carolina |
| NPD | BCBSNebraska |
| NPE | BCBSMinnesota |
| NPF | Carefirst BCBSMaryland |
| NPG | Carefirst BCBSMaryland |
| NPH | Horizon BCBSNew Jersey |
| NPI | BCBSMichigan |
| NPJ | BCBSFlorida |
| NPK | BCBSMichigan |
| NPL | Anthem Blue Cross of California |
| NPM | Carefirst BCBSMaryland |
| NPN | Not Assigned Prefix |
| NPO | Blue Shield of California |
| NPP | Independence Blue Cross |
| NPQ | Blue Cross of Idaho |
| NPR | BCBSIllinois |
| NPS | Carefirst BCBSMaryland |
| NPT | BCBSAlabama |
| NPU | Empire BCBSNew York |
| NPV | Regence BCBS |
| NPW | Not Assigned Prefix |
| NPX | BCBSRhose Island |
| NPY | Empire BCBSNew York |
| NPZ | Blue Cross of Idaho |
| NQA | BCBSMassachusetts |
| NQB | Blue Cross of Idaho |
| NQC | Regence BCBS |
| NQD | BCBSWestern New York |
| NQE | Not Assigned Prefix |
| NQF | Premera Blue Cross |
| NQG | BCBSMichigan |
| NQH | BCBSIllinois |
| NQI | BCBSMichigan |
| NQJ | Not Assigned Prefix |
| NQK | Blue Cross of Idaho |
| NQL | BCBSMassachusetts |
| NQM | Anthem BCBSColorado |
| NQN | Premera Blue Cross |
| NQO | Not Assigned Prefix |
| NQP | BCBSWestern New York |
| NQQ | BCBSMinnesota |
| NQR | BCBSMassachusetts |
| NQS | BCBSIllinois |
| NQT | BCBSMichigan |
| NQU | BCBSMichigan |
| NQV | BCBSMassachusetts |
| NQW | BCBSMinnesota |
| NQX | BCBSMassachusetts |
| NQY | Anthem Blue Cross of California |
| NQZ | Not Assigned Prefix |
| NRA | BCBSMinnesota |
| NRB | Premera Blue Cross |
| NRC | BCBSMinnesota |
| NRD | Capital Blue Cross |
| NRE | Capital Blue Cross |
| NRF | BCBSIllinois |
| NRG | BCBSIllinois |
| NRH | Premera Blue Cross |
| NRI | BCBSNebraska |
| NRJ | Anthem Blue Cross of California |
| NRK | Anthem Blue Cross of California |
| NRL | Premera Blue Cross |
| NRM | Carefirst BCBSMaryland |
| NRN | BCBSNebraska |
| NRO | BCBSGeorgia |
| NRP | Not Assigned Prefix |
| NRQ | Horizon BCBSNew Jersey |
| NRR | Anthem Blue Cross of California |
| NRS | Premera Blue Cross |
| NRT | Anthem Blue Cross of California |
| NRU | Anthem BCBSOhio |
| NRV | Not Assigned Prefix |
| NRW | Horizon BCBSNew Jersey |
| NRX | Anthem BCBSColorado |
| NRY | Not Assigned Prefix |
| NRZ | Not Assigned Prefix |
| NSA | Anthem Blue Cross of California |
| NSB | Blue Shield of California |
| NSC | Blue Shield of California |
| NSD | BCBSMichigan |
| NSE | Blue Shield of California |
| NSF | Not Assigned Prefix |
| NSG | Horizon BCBSNew Jersey |
| NSH | Carefirst BCBSMaryland |
| NSI | Horizon BCBSNew Jersey |
| NSJ | Horizon BCBSNew Jersey |
| NSK | Horizon BCBSNew Jersey |
| NSL | Blue Shield of California |
| NSM | Wellmark BCBS |
| NSN | Blue Shield of California |
| NSO | Excellus BCBSNew York |
| NSP | Horizon BCBSNew Jersey |
| NSQ | Wellmark BCBS |
| NSR | Blue Cross of Idaho |
| NSS | BCBSMichigan |
| NST | BCBSTexas |
| NSU | Anthem BCBSOhio |
| NSV | Wellmark BCBS |
| NSW | Regence BCBS |
| NSX | Regence BCBSUtah |
| NSY | Horizon BCBSNew Jersey |
| NSZ | BCBSTennessee |
| NTA | Anthem BCBSNew Hampshire |
| NTB | BCBSMichigan |
| NTC | BCBSGeorgia |
| NTD | BCBSMassachusetts |
| NTE | Premera Blue Cross |
| NTF | Premera Blue Cross |
| NTG | Not Assigned Prefix |
| NTH | BCBSMinnesota |
| NTI | Wellmark BCBS |
| NTJ | Blue Cross of Northeast Pennsylvania |
| NTK | BCBSTexas |
| NTL | BCBSAlabama |
| NTM | BCBSIllinois |
| NTN | Anthem Blue Cross of California |
| NTO | Wellmark BCBS |
| NTP | Empire BCBSNew York |
| NTQ | Blue Cross of Northeast Pennsylvania |
| NTR | Horizon BCBSNew Jersey |
| NTS | Anthem BCBSOhio |
| NTT | Regence Blue Cross Blue Shield of Oregon |
| NTU | BCBSAlabama |
| NTV | Blue Shield of California |
| NTW | Horizon BCBSNew Jersey |
| NTX | Blue Shield of California |
| NTY | BCBSNorth Carolina |
| NTZ | BCBSMassachusetts |
| NUA | Anthem BCBSOhio |
| NUB | Highmark BCBSWest Virginia |
| NUC | BCBSIllinois |
| NUD | BCBSNebraska |
| NUE | BCBSKansas City |
| NUF | Horizon BCBSNew Jersey |
| NUG | Anthem BCBSOhio |
| NUH | Horizon BCBSNew Jersey |
| NUI | Regence BCBS |
| NUJ | Premera Blue Cross |
| NUK | BCBSTexas |
| NUL | Not Assigned Prefix |
| NUM | Carefirst BCBSMaryland |
| NUN | Independence Blue Cross |
| NUO | BCBSMichigan |
| NUP | BCBSMassachusetts |
| NUQ | BCBSMassachusetts |
| NUR | Anthem BCBSIndiana |
| NUS | Blue Cross of Idaho |
| NUT | BCBSSouth Carolina |
| NUU | BCBSIllinois |
| NUV | BCBSIllinois |
| NUW | Anthem Blue Cross of California |
| NUX | Capital Blue Cross |
| NUY | Anthem BCBSConnecticut |
| NUZ | Regence Blue Shield of Idaho |
| NVA | Not Assigned Prefix |
| NVB | BCBSMassachusetts |
| NVC | Regence Blue Shield of Idaho |
| NVD | BCBSIllinois |
| NVE | Wellmark BCBS |
| NVF | Carefirst BCBSMaryland |
| NVG | BCBSMichigan |
| NVH | Premera Blue Cross |
| NVI | BCBSMinnesota |
| NVJ | Anthem BCBSWisconsin |
| NVK | BCBSIllinois |
| NVL | BCBSTexas |
| NVM | Wellmark BCBS |
| NVN | Not Assigned Prefix |
| NVO | Independence Blue Cross |
| NVP | Horizon BCBSNew Jersey |
| NVQ | Independence Blue Cross |
| NVR | Anthem BCBSOhio |
| NVS | BCBSAlabama |
| NVT | BCBSFlorida |
| NVU | Premera Blue Cross |
| NVV | BCBSIllinois |
| NVW | Not Assigned Prefix |
| NVX | BCBSIllinois |
| NVY | Horizon BCBSNew Jersey |
| NVZ | BCBSFlorida |
| NWA | Not Assigned Prefix |
| NWB | Premera Blue Cross |
| NWC | BCBSSouth Carolina |
| NWD | Anthem BCBSColorado |
| NWE | Wellmark BCBS |
| NWF | Capital Blue Cross |
| NWG | Anthem BCBSGeorgia |
| NWH | Regence Blue Shield of Washington |
| NWI | BCBSMassachusetts |
| NWJ | Not Assigned Prefix |
| NWK | BCBSRhose Island |
| NWL | BCBSSouth Carolina |
| NWM | Not Assigned Prefix |
| NWN | BCBSGeorgia |
| NWO | Not Assigned Prefix |
| NWP | BCBSMinnesota |
| NWQ | Anthem BCBSGeorgia |
| NWR | Regence BCBS |
| NWS | Carefirst Administrators |
| NWT | Carefirst BCBSMaryland |
| NWU | BCBSRhose Island |
| NWV | Premera Blue Cross |
| NWW | Wellmark BCBS |
| NWX | Blue Cross of Idaho |
| NWY | BCBSRhode Island |
| NWZ | Blue Cross of Idaho |
| NXA | BCBSWestern New York |
| NXB | Anthem BCBSConnecticut |
| NXC | Anthem Blue Cross of California |
| NXD | BCBSNebraska |
| NXE | Anthem BCBSOhio |
| NXF | Not Assigned Prefix |
| NXG | BCBSArizona |
| NXH | Blue Shield of California |
| NXI | Carefirst BCBSMaryland |
| NXJ | Not Assigned Prefix |
| NXK | Carefirst BCBSMaryland |
| NXL | Premera Blue Cross |
| NXM | BCBSTexas |
| NXN | Blue Cross of Idaho |
| NXO | Blue Shield of Northeastern New York |
| NXP | Blue Shield of California |
| NXQ | BCBSIllinois |
| NXR | BCBSNorth Carolina |
| NXS | Anthem BCBSOhio |
| NXT | Premera Blue Cross |
| NXU | Empire BCBSNew York |
| NXV | Anthem BCBSNevada |
| NXW | Premera Blue Cross |
| NXX | Premera Blue Cross |
| NXY | Not Assigned Prefix |
| NXZ | BCBSGeorgia |
| NYA | Empire BCBSNew York |
| NYB | Empire BCBSNew York |
| NYC | Empire BCBSNew York |
| NYD | Empire BCBSNew York |
| NYE | Blue Shield of Northeastern New York |
| NYF | Blue Shield of Northeastern New York |
| NYG | Empire BCBSNew York |
| NYH | Empire BCBSNew York |
| NYI | Empire BCBSNew York |
| NYJ | BCBSTennessee |
| NYK | BCBSTexas |
| NYL | Carefirst BCBSMaryland |
| NYM | Horizon BCBSNew Jersey |
| NYN | Not Assigned Prefix |
| NYO | Empire BCBSNew York |
| NYP | Anthem BCBSMissouri |
| NYQ | BCBSGeorgia |
| NYR | BCBSTennessee |
| NYS | Not Assigned Prefix |
| NYT | Independence Blue Cross |
| NYU | Carefirst BCBSMaryland |
| NYV | Not Assigned Prefix |
| NYW | BCBSIllinois |
| NYX | BCBSAlabama |
| NYY | Empire BCBSNew York |
| NYZ | BCBSTexas |
| NZA | BCBSIllinois |
| NZB | BCBSSouth Carolina |
| NZC | BCBSSouth Carolina |
| NZD | Not Assigned Prefix |
| NZE | Not Assigned Prefix |
| NZF | BCBSTennessee |
| NZG | BCBSSouth Carolina |
| NZH | BCBSMichigan |
| NZI | BCBSArizona |
| NZJ | Anthem Blue Cross of California |
| NZK | Independence Blue Cross |
| NZL | Wellmark BCBS |
| NZM | Anthem BCBSGeorgia |
| NZN | BCBSSouth Carolina |
| NZO | BCBSMichigan |
| NZP | BCBSSouth Carolina |
| NZQ | BCBSMichigan |
| NZR | Anthem BCBSVirginia |
| NZS | Regence BCBS |
| NZT | BCBSSouth Carolina |
| NZU | BCBSNebraska |
| NZV | Wellmark BCBS |
| NZW | BCBSTennessee |
| NZX | Horizon BCBSNew Jersey |
| NZY | BCBSIllinois |
| NZZ | Wellmark BCBS |
BCBS prefix list NAA-NZZ is updated from BCBS authorized websites and try to keep it as latest updates. If any discrepancy found please let us know via contact us page.