| BCBS Alpha Prefix List of “N”-series | Blue Cross Blue Shield insurance Companies – Statewise |
| NAA | Anthem BCBS of Virginia (VA) |
| NAB | Arkansas (AR) Blue Cross |
| NAC | BCBS of Alabama (AL) |
| NAD | Not assigned prefix |
| NAE | Wellmark |
| NAF | BCBS of Alabama (AL) |
| NAG | BCBS of Western New York (WNY) |
| NAH | Anthem BCBS of Virginia (VA) |
| NAI | BCBS of Texas (TX) |
| NAJ | Anthem BCBS of Kentucky (KY) |
| NAK |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NAL | BCBS Blue Care Network Michigan (MI) |
| NAM | Blue Cross (BC) of Idaho (ID) |
| NAN | BCBS of Massachusetts (MA) |
| NAO | Blue Shield (BS) of California (CA) |
| NAP | Blue Shield (BS) of California (CA) |
| NAQ | Not assigned prefix |
| NAR | Wellmark |
| NAS | Regence BCBS |
| NAT | BCBS of South Carolina (SC) / Southcarolinablues |
| NAU | Excellus BCBS of New York (NY) |
| NAV | BCBS of Massachusetts (MA) |
| NAW | BCBS Blue Care Network Michigan (MI) |
| NAX | BCBS Blue Care Network Michigan (MI) |
| NAY | Premera Blue Cross (BC) of Alaska (AK) |
| NAZ | Blue Shield (BS) of California (CA) |
| NBA | Wellmark |
| NBB | Not assigned prefix |
| NBC | Not assigned prefix |
| NBD | Wellmark |
| NBE | BCBS of Arizona (AZ) |
| NBF | Not assigned prefix |
| NBG | Not assigned prefix |
| NBH | Anthem BCBS of Wisconsin (WI) |
| NBI | BCBS Blue Care Network Michigan (MI) |
| NBJ | Not assigned prefix |
| NBK | BCBS of Nebraska (NE) |
| NBL | Not assigned prefix |
| NBM | Wellmark |
| NBN | Wellmark |
| NBO | Anthem BCBS of Colorado (CO) |
| NBP | Empire BCBS of New York (NY) |
| NBQ | BCBS of North Carolina (NC) |
| NBR | BCBS of Illinois (IL) |
| NBS | Not assigned prefix |
| NBT | BCBS of Arizona (AZ) |
| NBU | BCBS Blue Care Network Michigan (MI) |
| NBV | Not assigned prefix |
| NBW | BCBS of Illinois (IL) |
| NBX | Anthem BCBS of Virginia (VA) |
| NBY | BCBS of Massachusetts (MA) |
| NBZ | Horizon BCBS of New Jersey (NJ) |
| NCA | BCBS of Tennessee (TN) |
| NCB | BCBS of Illinois (IL) |
| NCC | Not assigned prefix |
| NCD | Highmark BCBS of Delaware (DE) |
| NCE | BCBS Blue Care Network Michigan (MI) |
| NCF BCBS Prefix | Anthem Blue Cross(BC) of California (CA) |
| NCG | Wellmark |
| NCH | BCBS Blue Care Network Michigan (MI) |
| NCI | BCBS of Illinois (IL) |
| NCJ | BCBS of North Carolina (NC) |
| NCK | BCBS of North Carolina (NC) |
| NCL | Horizon BCBS of New Jersey (NJ) |
| NCM | Empire BCBS of New York (NY) |
| NCN | BCBS of Illinois (IL) |
| NCO | Blue Shield (BS) of California (CA) |
| NCP | Not assigned prefix |
| NCQ | Highmark BCBS of Delaware (DE) |
| NCR | Empire BCBS of New York (NY) |
| NCS | Arkansas (AR) Blue Cross |
| NCT | Premera Blue Cross (BC) of Alaska (AK) |
| NCU | BCBS of North Carolina (NC) |
| NCV | Not assigned prefix |
| NCW | Premera BCBS of Alaska (AK) |
| NCX | BCBS of Illinois (IL) |
| NCY | BCBS of North Carolina (NC) |
| NCZ | Premera BCBS of Alaska (AK) |
| NDA | Not assigned prefix |
| NDB | Anthem BCBS of Wisconsin (WI) |
| NDC | Not assigned prefix |
| NDD | Horizon BCBS of New Jersey (NJ) |
| NDE | BCBS Blue Care Network Michigan (MI) |
| NDF | Anthem BCBS of Indiana (IN) |
| NDG | Anthem Blue Cross(BC) of California (CA) |
| NDH | Not assigned prefix |
| NDI | Not assigned prefix |
| NDJ | Not assigned prefix |
| NDK | Anthem BCBS of New Hampshire (NH) |
| NDL | Not assigned prefix |
| NDM | Anthem BCBS of Wisconsin (WI) |
| NDN | Not assigned prefix |
| NDO | Blue Shield (BS) of California (CA) |
| NDP |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NDQ | Blue Shield (BS) of California (CA) |
| NDR | Highmark BCBS of Pennsylvania (PA) |
| NDS | Not assigned prefix |
| NDT | Anthem BCBS of Georgia (GA) |
| NDU | Not assigned prefix |
| NDV | Not assigned prefix |
| NDW | Not assigned prefix |
| NDX | Not assigned prefix |
| NDY | Wellmark |
| NDZ | Not assigned prefix |
| NEA | BCBS of Illinois (IL) |
| NEB |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| NEC | BCBS of Illinois (IL) |
| NED | BCBS of Nebraska (NE) |
| NEE | BCBS of Western New York (WNY) |
| NEF | BCBS of Western New York (WNY) |
| NEG | Florida (FL) Blue |
| NEH | Not assigned prefix |
| NEI BCBS Prefix | BCBS of Illinois (IL) |
| NEJ | Not assigned prefix |
| NEK | BCBS of Tennessee (TN) |
| NEL | BCBS of Alabama (AL) |
| NEM | Not assigned prefix |
| NEN | BCBS of South Carolina (SC) / Southcarolinablues |
| NEO | Not assigned prefix |
| NEP | BCBS of Minnesota (MN) |
| NEQ | BCBS of Nebraska (NE) |
| NER | Regence BCBS |
| NES | Florida (FL) Blue |
| NET | Anthem BCBS of Connecticut (CT) |
| NEU | BCBS of Minnesota (MN) |
| NEV | Anthem BCBS of Kentucky (KY) |
| NEW | BCBS of Alabama (AL) |
| NEX | Regence BCBS |
| NEY | Not assigned prefix |
| NEZ | BCBS of Tennessee (TN) |
| NFA | BCBS of Illinois (IL) |
| NFB | BCBS of Western New York (WNY) |
| NFC | Horizon BCBS of New Jersey (NJ) |
| NFD | BCBS of Western New York (WNY) |
| NFE | Horizon BCBS of New Jersey (NJ) |
| NFF | Not assigned prefix |
| NFG | BCBS of Illinois (IL) |
| NFH | Not assigned prefix |
| NFI | BCBS of Vermont (VT) |
| NFJ | Excellus BCBS of New York (NY) |
| NFK | Premera BCBS of Alaska (AK) |
| NFL | BCBS of Western New York (WNY) |
| NFM | Highmark BCBS of Pennsylvania (PA) |
| NFN | Highmark BCBS of Pennsylvania (PA) |
| NFO | Wellmark |
| NFP | BCBS of Western New York (WNY) |
| NFQ | Not assigned prefix |
| NFR | Not assigned prefix |
| NFS | Florida (FL) Blue |
| NFT | BCBS of Western New York (WNY) |
| NFU | Not assigned prefix |
| NFV |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NFW | Not assigned prefix |
| NFX | Premera BCBS of Alaska (AK) |
| NFY |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NFZ | BCBS of Massachusetts (MA) |
| NGA | Not assigned prefix |
| NGB | Florida (FL) Blue |
| NGC | BCBS of Illinois (IL) |
| NGD | Florida (FL) Blue |
| NGE | BCBS of Massachusetts (MA) |
| NGF | BCBS of Massachusetts (MA) |
| NGG | Anthem Blue Cross(BC) of California (CA) |
| NGH | Anthem BCBS of New Hampshire (NH) |
| NGI | BCBS of Massachusetts (MA) |
| NGJ | BCBS of South Carolina (SC) / Southcarolinablues |
| NGK | BCBS of Massachusetts (MA) |
| NGL | Anthem BCBS of New Hampshire (NH) |
| NGM | Not assigned prefix |
| NGN | BCBS of Massachusetts (MA) |
| NGO BCBS Prefix | Anthem Blue Cross(BC) of California (CA) |
| NGP | Wellmark |
| NGQ | Not assigned prefix |
| NGR | Not assigned prefix |
| NGS | Not assigned prefix |
| NGT | Not assigned prefix |
| NGU | BCBS of Western New York (WNY) |
| NGV | Not assigned prefix |
| NGW | Blue Shield (BS) of California (CA) |
| NGX | BCBS of Illinois (IL) |
| NGY | BCBS of Massachusetts (MA) |
| NGZ | Wellmark |
| NHA | Anthem BCBS of New Hampshire (NH) |
| NHB | BCBS of Alabama (AL) |
| NHC | BCBS of Tennessee (TN) |
| NHD | Anthem BCBS of Ohio (OH) |
| NHE | Not assigned prefix |
| NHF | Not assigned prefix |
| NHG | Capital Blue Cross of Pennsylvania (PA) |
| NHH | Blue Shield (BS) of California (CA) |
| NHI | BCBS of Massachusetts (MA) |
| NHJ | Highmark BCBS of Pennsylvania (PA) |
| NHK | Highmark BCBS of Pennsylvania (PA) |
| NHL | Horizon BCBS of New Jersey (NJ) |
| NHM | BCBS of Massachusetts (MA) |
| NHN | Anthem BCBS of New Hampshire (NH) |
| NHO | Blue Shield (BS) of California (CA) |
| NHP | Anthem BCBS of New Hampshire (NH) |
| NHQ |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NHR | BCBS of Minnesota (MN) |
| NHS | Not assigned prefix |
| NHT | BCBS Blue Care Network Michigan (MI) |
| NHU | Capital Blue Cross of Pennsylvania (PA) |
| NHV | Capital Blue Cross of Pennsylvania (PA) |
| NHW | BCBS of Kansas City |
| NHX | Horizon BCBS of New Jersey (NJ) |
| NHY | Not assigned prefix |
| NHZ | Not assigned prefix |
| NIA | Anthem BCBS of Wisconsin (WI) |
| NIB | Not assigned prefix |
| NIC | Anthem BCBS of Georgia (GA) |
| NID | Regence BCBS |
| NIE | Anthem Blue Cross(BC) of California (CA) |
| NIF | Not assigned prefix |
| NIG | Not assigned prefix |
| NIH | BCBS of Massachusetts (MA) |
| NII | Horizon BCBS of New Jersey (NJ) |
| NIJ | Anthem BCBS of Indiana (IN) |
| NIK | Not assigned prefix |
| NIL | Anthem BCBS of Georgia (GA) |
| NIM | Not assigned prefix |
| NIN | BCBS of Nebraska (NE) |
| NIO | Wellmark |
| NIP | Blue Shield (BS) of California (CA) |
| NIQ | Anthem BCBS of Ohio (OH) |
| NIR |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| NIS | Not assigned prefix |
| NIT | Anthem BCBS of Georgia (GA) |
| NIU | Florida (FL) Blue |
| NIV | Anthem Blue Cross(BC) of California (CA) |
| NIW | Empire BCBS of New York (NY) |
| NIX | Empire BCBS of New York (NY) |
| NIY | BCBS of Kansas City |
| NIZ | Not assigned prefix |
| NJA | Anthem BCBS of Georgia (GA) |
| NJB | Highmark BCBS of Pennsylvania (PA) |
| NJC | Anthem BCBS of Ohio (OH) |
| NJD | Horizon BCBS of New Jersey (NJ) |
| NJE | Horizon BCBS of New Jersey (NJ) |
| NJF | BCBS of Illinois (IL) |
| NJG | BCBS of Texas (TX) |
| NJH | Not assigned prefix |
| NJI | Horizon BCBS of New Jersey (NJ) |
| NJJ | Not assigned prefix |
| NJK | Anthem BCBS of Ohio (OH) |
| NJL | BCBS Blue Care Network Michigan (MI) |
| NJM | Anthem Blue Cross(BC) of California (CA) |
| NJN | Horizon BCBS of New Jersey (NJ) |
| NJO | Horizon BCBS of New Jersey (NJ) |
| NJP | Horizon BCBS of New Jersey (NJ) |
| NJQ | BCBS of South Carolina (SC) / Southcarolinablues |
| NJR | Horizon BCBS of New Jersey (NJ) |
| NJS | Horizon BCBS of New Jersey (NJ) |
| NJT | Horizon BCBS of New Jersey (NJ) |
| NJU | Anthem BCBS of Connecticut (CT) |
| NJV | BCBS Blue Care Network Michigan (MI) |
| NJW BCBS Prefix | Not assigned prefix |
| NJX BCBS Prefix | Horizon BCBS of New Jersey (NJ) |
| NJY | Not assigned prefix |
| NJZ | Wellmark |
| NKA | BCBS of Minnesota (MN) |
| NKB | Anthem Blue Cross(BC) of California (CA) |
| NKC | Not assigned prefix |
| NKD | Not assigned prefix |
| NKE | Anthem BCBS of Ohio (OH) |
| NKF | BCBS of Alabama (AL) |
| NKG | Horizon BCBS of New Jersey (NJ) |
| NKH | Horizon BCBS of New Jersey (NJ) |
| NKI | Not assigned prefix |
| NKJ | BCBS Blue Care Network Michigan (MI) |
| NKK | BCBS Blue Care Network Michigan (MI) |
| NKL | BCBS of Illinois (IL) |
| NKM | BCBS of Tennessee (TN) |
| NKN | Anthem Blue Cross(BC) of California (CA) |
| NKO | Horizon BCBS of New Jersey (NJ) |
| NKP |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NKQ | BCBS Blue Care Network Michigan (MI) |
| NKR | Anthem BCBS of Indiana (IN) |
| NKS | BCBS Blue Care Network Michigan (MI) |
| NKT | BCBS of Illinois (IL) |
| NKU |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NKV | BCBS of Massachusetts (MA) |
| NKW | Not assigned prefix |
| NKX | BCBS of Tennessee (TN) |
| NKY | BCBS Blue Care Network Michigan (MI) |
| NKZ | Not assigned prefix |
| NLA | BCBS Blue Care Network Michigan (MI) |
| NLB | BCBS of Illinois (IL) |
| NLC | BCBS of Kansas City |
| NLD | Horizon BCBS of New Jersey (NJ) |
| NLE | Horizon BCBS of New Jersey (NJ) |
| NLF | Not assigned prefix |
| NLG | Horizon BCBS of New Jersey (NJ) |
| NLH | BCBS Blue Care Network Michigan (MI) |
| NLI | BCBS of Alabama (AL) |
| NLJ | BCBS of Alabama (AL) |
| NLK | Anthem BCBS of Ohio (OH) |
| NLL | BCBS of Illinois (IL) |
| NLM BCBS Prefix | Highmark BCBS of Pennsylvania (PA) |
| NLN | Highmark BCBS of Pennsylvania (PA) |
| NLO |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NLP | Blue Shield (BS) of California (CA) |
| NLQ | Premera BCBS of Alaska (AK) |
| NLR | BCBS of Texas (TX) |
| NLS | Horizon BCBS of New Jersey (NJ) |
| NLT BCBS Prefix | BCBS of Texas (TX) |
| NLU | BCBS of Massachusetts (MA) |
| NLV |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NLW | Not assigned prefix |
| NLX | Premera BCBS of Alaska (AK) |
| NLY | Not assigned prefix |
| NLZ | Premera BCBS of Alaska (AK) |
| NMA | Florida (FL) Blue |
| NMB | Not assigned prefix |
| NMC | Not assigned prefix |
| NMD | BCBS of Kansas City |
| NME | Anthem BCBS of Georgia (GA) |
| NMF | Not assigned prefix |
| NMG | Not assigned prefix |
| NMH | Anthem BCBS of Ohio (OH) |
| NMI | Regence BCBS |
| NMJ | BCBS of New Mexico (NM) |
| NMK | Not assigned prefix |
| NML | BCBS of South Carolina (SC) / Southcarolinablues |
| NMM | BCBS of New Mexico (NM) |
| NMN | Not assigned prefix |
| NMO | Horizon BCBS of New Jersey (NJ) |
| NMP | BCBS of Illinois (IL) |
| NMQ | Not assigned prefix |
| NMR | Horizon BCBS of New Jersey (NJ) |
| NMS |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NMT | BCBS of Illinois (IL) |
| NMU | BCBS of Tennessee (TN) |
| NMV | Not assigned prefix |
| NMW | BCBS of Illinois (IL) |
| NMX | Anthem BCBS of Colorado (CO) |
| NMY | Anthem BCBS of New Hampshire (NH) |
| NMZ | Not assigned prefix |
| NNA | BCBS of Tennessee (TN) |
| NNB | Not assigned prefix |
| NNC | Blue Cross (BC) of Idaho (ID) |
| NND | BCBS of Massachusetts (MA) |
| NNE | BCBS of Massachusetts (MA) |
| NNF | BCBS of Western New York (WNY) |
| NNG | BCBS of Arizona (AZ) |
| NNH | Anthem BCBS of Virginia (VA) |
| NNI | Horizon BCBS of New Jersey (NJ) |
| NNJ | BCBS of Arizona (AZ) |
| NNK | BCBS of North Carolina (NC) |
| NNL | Not assigned prefix |
| NNM | Not assigned prefix |
| NNN | BCBS of Illinois (IL) |
| NNO | BCBS of North Carolina (NC) |
| NNP | BCBS of Illinois (IL) |
| NNQ | Premera BCBS of Alaska (AK) |
| NNR | Horizon BCBS of New Jersey (NJ) |
| NNS | Not assigned prefix |
| NNT | Not assigned prefix |
| NNU | Highmark BCBS of Pennsylvania (PA) |
| NNV | Not assigned prefix |
| NNW | BCBS of Montana (MT) |
| NNX | Highmark BCBS of Pennsylvania (PA) |
| NNY | Premera BCBS of Alaska (AK) |
| NNZ | Anthem BCBS of Virginia (VA) |
| NOA | Anthem BCBS of Virginia (VA) |
| NOB | Horizon BCBS of New Jersey (NJ) |
| NOC | Horizon BCBS of New Jersey (NJ) |
| NOD | Horizon BCBS of New Jersey (NJ) |
| NOE | Anthem Blue Cross(BC) of California (CA) |
| NOF | BCBS Blue Care Network Michigan (MI) |
| NOG | BCBS Blue Care Network Michigan (MI) |
| NOH | Not assigned prefix |
| NOI | Anthem BCBS of Ohio (OH) |
| NOJ | Not assigned prefix |
| NOK | Not assigned prefix |
| NOL |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| NOM | Not assigned prefix |
| NON | BCBS of North Carolina (NC) |
| NOO | Not assigned prefix |
| NOP | Not assigned prefix |
| NOQ | Not assigned prefix |
| NOR | BCBS of Arizona (AZ) |
| NOS | Not assigned prefix |
| NOT | Anthem BCBS of Ohio (OH) |
| NOU | Anthem Blue Cross(BC) of California (CA) |
| NOV | Not assigned prefix |
| NOW | Not assigned prefix |
| NOX | Not assigned prefix |
| NOY | Blue Shield (BS) of California (CA) |
| NOZ | Not assigned prefix |
| NPA |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NPB | Not assigned prefix |
| NPC | BCBS of Kansas City |
| NPD | BCBS of Nebraska (NE) |
| NPE | BCBS of Minnesota (MN) |
| NPF | Not assigned prefix |
| NPG |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NPH | Horizon BCBS of New Jersey (NJ) |
| NPI | BCBS Blue Care Network Michigan (MI) |
| NPJ | Florida (FL) Blue |
| NPK | BCBS Blue Care Network Michigan (MI) |
| NPL | BCBS Blue Care Network Michigan (MI) |
| NPM | Anthem BCBS of Kentucky (KY) |
| NPN | Not assigned prefix |
| NPO | Blue Shield (BS) of California (CA) |
| NPP |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| NPQ | Not assigned prefix |
| NPR | BCBS of Illinois (IL) |
| NPS |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NPT |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NPU | Empire BCBS of New York (NY) |
| NPV | Regence BCBS |
| NPW | Not assigned prefix |
| NPX | BCBS of Rhode Island the (RI) |
| NPY | Not assigned prefix |
| NPZ | Not assigned prefix |
| NQA | BCBS of Massachusetts (MA) |
| NQB | Not assigned prefix |
| NQC | Regence BCBS |
| NQD | BCBS of Western New York (WNY) |
| NQE | Not assigned prefix |
| NQF | Premera BCBS of Alaska (AK) |
| NQG | BCBS Blue Care Network Michigan (MI) |
| NQH | Not assigned prefix |
| NQI | BCBS Blue Care Network Michigan (MI) |
| NQJ | Not assigned prefix |
| NQK | Not assigned prefix |
| NQL | BCBS of Nebraska (NE) |
| NQM | Anthem BCBS of Colorado (CO) |
| NQN | Premera BCBS of Alaska (AK) |
| NQO | Blue Cross (BC) of Idaho (ID) |
| NQP | BCBS of Western New York (WNY) |
| NQQ | BCBS of Minnesota (MN) |
| NQR | BCBS of Massachusetts (MA) |
| NQS | Not assigned prefix |
| NQT | Not assigned prefix |
| NQU | BCBS Blue Care Network Michigan (MI) |
| NQV | BCBS of Massachusetts (MA) |
| NQW | BCBS of Minnesota (MN) |
| NQX | BCBS of Massachusetts (MA) |
| NQY | Not assigned prefix |
| NQZ | Not assigned prefix |
| NRA | BCBS of Minnesota (MN) |
| NRB | Premera BCBS of Alaska (AK) |
| NRC | BCBS of Minnesota (MN) |
| NRD | Capital Blue Cross of Pennsylvania (PA) |
| NRE | BCBS of Rhode Island the (RI) |
| NRF | Not assigned prefix |
| NRG | BCBS of Illinois (IL) |
| NRH | Premera BCBS of Alaska (AK) |
| NRI | BCBS of Nebraska (NE) |
| NRJ | Anthem BCBS of Georgia (GA) |
| NRK | Not assigned prefix |
| NRL | Premera BCBS of Alaska (AK) |
| NRM |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NRN | BCBS of Nebraska (NE) |
| NRO | Anthem BCBS of Georgia (GA) |
| NRP | Not assigned prefix |
| NRQ | Horizon BCBS of New Jersey (NJ) |
| NRR | Not assigned prefix |
| NRS | Premera BCBS of Alaska (AK) |
| NRT | Anthem BCBS of Virginia (VA) |
| NRU | Anthem BCBS of Ohio (OH) |
| NRV | Not assigned prefix |
| NRW | Horizon BCBS of New Jersey (NJ) |
| NRX | Not assigned prefix |
| NRY | Not assigned prefix |
| NRZ | Not assigned prefix |
| NSA BCBS Prefix | Anthem Blue Cross(BC) of California (CA) |
| NSB | Not assigned prefix |
| NSC | Blue Shield (BS) of California (CA) |
| NSD | BCBS Blue Care Network Michigan (MI) |
| NSE | Not assigned prefix |
| NSF | Not assigned prefix |
| NSG | Horizon BCBS of New Jersey (NJ) |
| NSH | Not assigned prefix |
| NSI | Horizon BCBS of New Jersey (NJ) |
| NSJ | Horizon BCBS of New Jersey (NJ) |
| NSK | Horizon BCBS of New Jersey (NJ) |
| NSL | Blue Shield (BS) of California (CA) |
| NSM | Wellmark |
| NSN | Not assigned prefix |
| NSO | Excellus BCBS of New York (NY) |
| NSP | Anthem BCBS of Virginia (VA) |
| NSQ | Wellmark |
| NSR | Blue Cross (BC) of Idaho (ID) |
| NSS | BCBS Blue Care Network Michigan (MI) |
| NST | Not assigned prefix |
| NSU | Anthem BCBS of Ohio (OH) |
| NSV | Wellmark |
| NSW | Regence BCBS |
| NSX | Not assigned prefix |
| NSY | Horizon BCBS of New Jersey (NJ) |
| NSZ | Not assigned prefix |
| NTA | Anthem BCBS of New Hampshire (NH) |
| NTB | BCBS Blue Care Network Michigan (MI) |
| NTC | Not assigned prefix |
| NTD | Not assigned prefix |
| NTE | Anthem BCBS of Connecticut (CT) |
| NTF | Not assigned prefix |
| NTG | Not assigned prefix |
| NTH | Not assigned prefix |
| NTI | Wellmark |
| NTJ | Highmark BCBS of Pennsylvania (PA) |
| NTK | Not assigned prefix |
| NTL | Not assigned prefix |
| NTM | BCBS of Illinois (IL) |
| NTN | Anthem Blue Cross(BC) of California (CA) |
| NTO | Wellmark |
| NTP | Empire BCBS of New York (NY) |
| NTQ | Highmark BCBS of Pennsylvania (PA) |
| NTR | Horizon BCBS of New Jersey (NJ) |
| NTS | Anthem BCBS of Kentucky (KY) |
| NTT | Regence BCBS |
| NTU | BCBS of Alabama (AL) |
| NTV | Blue Shield (BS) of California (CA) |
| NTW | Horizon BCBS of New Jersey (NJ) |
| NTX | Blue Shield (BS) of California (CA) |
| NTY | Not assigned prefix |
| NTZ | BCBS of Massachusetts (MA) |
| NUA | Anthem BCBS of Georgia (GA) |
| NUB | Highmark BCBS of West Virginia (WV) |
| NUC | BCBS of Illinois (IL) |
| NUD | BCBS of Nebraska (NE) |
| NUE | BCBS of South Carolina (SC) / Southcarolinablues |
| NUF | Horizon BCBS of New Jersey (NJ) |
| NUG | Anthem BCBS of Georgia (GA) |
| NUH | Horizon BCBS of New Jersey (NJ) |
| NUI | Regence BCBS |
| NUJ | Premera BCBS of Alaska (AK) |
| NUK | BCBS of Texas (TX) |
| NUL |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NUM |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NUN |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| NUO | BCBS Blue Care Network Michigan (MI) |
| NUP | BCBS of Massachusetts (MA) |
| NUQ | BCBS of Massachusetts (MA) |
| NUR | Anthem BCBS of Indiana (IN) |
| NUS | BCBS of Illinois (IL) |
| NUT | BCBS of South Carolina (SC) / Southcarolinablues |
| NUU | BCBS of Illinois (IL) |
| NUV | BCBS of Illinois (IL) |
| NUW | Not assigned prefix |
| NUX | Capital Blue Cross of Pennsylvania (PA) |
| NUY | Anthem BCBS of Connecticut (CT) |
| NUZ | Not assigned prefix |
| NVA | Not assigned prefix |
| NVB | BCBS of Massachusetts (MA) |
| NVC | Not assigned prefix |
| NVD | BCBS of Illinois (IL) |
| NVE | Wellmark |
| NVF | Not assigned prefix |
| NVG | BCBS Blue Care Network Michigan (MI) |
| NVH | Not assigned prefix |
| NVI | BCBS of Minnesota (MN) |
| NVJ | Anthem BCBS of Wisconsin (WI) |
| NVK | BCBS of Texas (TX) |
| NVL | BCBS of Texas (TX) |
| NVM | Wellmark |
| NVN | Not assigned prefix |
| NVO |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| NVP | Horizon BCBS of New Jersey (NJ) |
| NVQ |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| NVR | Not assigned prefix |
| NVS | Not assigned prefix |
| NVT | Not assigned prefix |
| NVU | Premera BCBS of Alaska (AK) |
| NVV | BCBS of Illinois (IL) |
| NVW | Not assigned prefix |
| NVX | BCBS of Illinois (IL) |
| NVY | Horizon BCBS of New Jersey (NJ) |
| NVZ | Florida (FL) Blue |
| NWA | Not assigned prefix |
| NWB | Premera BCBS of Alaska (AK) |
| NWC | Not assigned prefix |
| NWD | Anthem BCBS of Colorado (CO) |
| NWE | Wellmark |
| NWF | Not assigned prefix |
| NWG | Anthem BCBS of Georgia (GA) |
| NWH | Regence BCBS |
| NWI | BCBS of Massachusetts (MA) |
| NWJ | BCBS of South Carolina (SC) / Southcarolinablues |
| NWK | BCBS of Rhode Island the (RI) |
| NWL | BCBS of South Carolina (SC) / Southcarolinablues |
| NWM | Not assigned prefix |
| NWN | BCBS of North Carolina (NC) |
| NWO | Not assigned prefix |
| NWP | BCBS of Minnesota (MN) |
| NWQ | Anthem BCBS of Georgia (GA) |
| NWR | Regence BCBS |
| NWS |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NWT |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NWU | Not assigned prefix |
| NWV | Premera BCBS of Alaska (AK) |
| NWW | Wellmark |
| NWX | Blue Cross (BC) of Idaho (ID) |
| NWY | BCBS of Rhode Island the (RI) |
| NWZ | Not assigned prefix |
| NXA | Not assigned prefix |
| NXB | Not assigned prefix |
| NXC | Anthem BCBS of Indiana (IN) |
| NXD | BCBS of Nebraska (NE) |
| NXE | Anthem BCBS of Ohio (OH) |
| NXF | Not assigned prefix |
| NXG | BCBS of Arizona (AZ) |
| NXH | Blue Shield (BS) of California (CA) |
| NXI | Blue Shield (BS) of California (CA) |
| NXJ | Not assigned prefix |
| NXK | Not assigned prefix |
| NXL | Not assigned prefix |
| NXM | Not assigned prefix |
| NXN | Blue Cross (BC) of Idaho (ID) |
| NXO | Blue shield(BS) of Northeastern New York (NeNY) |
| NXP | Not assigned prefix |
| NXQ | BCBS of Illinois (IL) |
| NXR | BCBS of North Carolina (NC) |
| NXS | Anthem BCBS of Ohio (OH) |
| NXT | Blue Shield (BS) of California (CA) |
| NXU | Empire BCBS of New York (NY) |
| NXV | Not assigned prefix |
| NXW | Premera Blue Cross (BC) of Alaska (AK) |
| NXX | Not assigned prefix |
| NXY | Not assigned prefix |
| NXZ | Not assigned prefix |
| NYA | Empire BCBS of New York (NY) |
| NYB | Empire BCBS of New York (NY) |
| NYC | Empire BCBS of New York (NY) |
| NYD | Empire BCBS of New York (NY) |
| NYE | Blue shield(BS) of Northeastern New York (NeNY) |
| NYF | Blue shield(BS) of Northeastern New York (NeNY) |
| NYG | Empire BCBS of New York (NY) |
| NYH | Empire BCBS of New York (NY) |
| NYI | Empire BCBS of New York (NY) |
| NYJ | BCBS of Tennessee (TN) |
| NYK | BCBS of Texas (TX) |
| NYL |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| NYM | Horizon BCBS of New Jersey (NJ) |
| NYN | Not assigned prefix |
| NYO | Not assigned prefix |
| NYP | Anthem BCBS of Missouri (MO) |
| NYQ | Anthem BCBS of Georgia (GA) |
| NYR | BCBS of Tennessee (TN) |
| NYS | Not assigned prefix |
| NYT |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| NYU | Not assigned prefix |
| NYV | Not assigned prefix |
| NYW | BCBS of Illinois (IL) |
| NYX | BCBS of Alabama (AL) |
| NYY | Empire BCBS of New York (NY) |
| NYZ | BCBS of Texas (TX) |
| NZA | BCBS of Illinois (IL) |
| NZB | BCBS of South Carolina (SC) / Southcarolinablues |
| NZC | BCBS of South Carolina (SC) / Southcarolinablues |
| NZD | Not assigned prefix |
| NZE | Not assigned prefix |
| NZF | BCBS of Tennessee (TN) |
| NZG | BCBS of South Carolina (SC) / Southcarolinablues |
| NZH | BCBS Blue Care Network Michigan (MI) |
| NZI | BCBS of Arizona (AZ) |
| NZJ | Not assigned prefix |
| NZK |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| NZL | Wellmark |
| NZM | Anthem BCBS of Georgia (GA) |
| NZN | BCBS of South Carolina (SC) / Southcarolinablues |
| NZO | BCBS Blue Care Network Michigan (MI) |
| NZP | BCBS of South Carolina (SC) / Southcarolinablues |
| NZQ | BCBS Blue Care Network Michigan (MI) |
| NZR | Anthem BCBS of Virginia (VA) |
| NZS | Regence BCBS |
| NZT | Florida (FL) Blue |
| NZU | BCBS of Nebraska (NE) |
| NZV | Wellmark |
| NZW | BCBS of Tennessee (TN) |
| NZX | Not assigned prefix |
| NZY | BCBS of Illinois (IL) |
| NZZ | Wellmark |
