| BCBS Alpha Prefix List of “O”-series | Blue Cross Blue Shield insurance Companies – Statewise |
| OAA | Not Assigned Prefix |
| OAB | BCBS of Massachusetts (MA) |
| OAC | Anthem BCBS of Ohio (OH) |
| OAD | BCBS of Western New York (WNY) |
| OAE | Anthem BCBS of Ohio (OH) |
| OAF | Anthem BCBS of Virginia (VA) |
| OAG | Anthem BCBS of Colorado (CO) |
| OAH | Empire BCBS of New York (NY) |
| OAI | Blue shield(BS) of California (CA) |
| OAJ | Not Assigned Prefix |
| OAK |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OAL | Blue shield(BS) of California (CA) |
| OAM | Highmark BCBS of Pennsylvania (PA) |
| OAN |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OAO | Not Assigned Prefix |
| OAP | Anthem BCBS of Kentucky (KY) |
| OAQ |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OAR |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OAS | Anthem BCBS of Indiana (IN) |
| OAT | BCBS of Nebraska (NE) |
| OAU | BCBS Blue Care Network Michigan (MI) |
| OAV | Not Assigned Prefix |
| OAW | Not Assigned Prefix |
| OAX | Not Assigned Prefix |
| OAY | Not Assigned Prefix |
| OAZ | BCBS of Massachusetts (MA) |
| OBA | Anthem Blue Cross(BC) of California (CA) |
| OBB | Highmark BCBS of Pennsylvania (PA) |
| OBC | BCBS of Massachusetts (MA) |
| OBD | Florida (FL) Blue |
| OBE | BCBS Blue Care Network Michigan (MI) |
| OBF | Highmark BCBS of Pennsylvania (PA) |
| OBG | Not Assigned Prefix |
| OBH | Not Assigned Prefix |
| OBI | BCBS of Minnesota (MN) |
| OBJ | Premera BCBS of Alaska (AK) |
| OBK | Not Assigned Prefix |
| OBL |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OBM |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OBN | BCBS of Massachusetts (MA) |
| OBO | Highmark BCBS of Pennsylvania (PA) |
| OBP | Blue shield(BS) of California (CA) |
| OBQ | Anthem Blue Cross(BC) of California (CA) |
| OBR | Wellmark |
| OBS | Not Assigned Prefix |
| OBT | BCBS of Arizona (AZ) |
| OBU | BCBS of Alabama (AL) |
| OBV | Anthem BCBS of Georgia (GA) |
| OBW |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OBX | Anthem BCBS of Georgia (GA) |
| OBY | Not Assigned Prefix |
| OBZ | Not Assigned Prefix |
| OCA | Anthem Blue Cross(BC) of California (CA) |
| OCB | Not Assigned Prefix |
| OCC | Not Assigned Prefix |
| OCD | Blue shield(BS) of California (CA) |
| OCE | Not Assigned Prefix |
| OCF | Not Assigned Prefix |
| OCG | Wellmark |
| OCH | BCBS of Western New York (WNY) |
| OCI | Anthem BCBS of Wisconsin (WI) |
| OCJ | Not Assigned Prefix |
| OCK | Florida (FL) Blue |
| OCL | Not Assigned Prefix |
| OCM | Wellmark |
| OCN | Regence BCBS |
| OCO | Blue shield(BS) of California (CA) |
| OCP | Anthem BCBS of Ohio (OH) |
| OCQ | Not Assigned Prefix |
| OCR |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OCS | Not Assigned Prefix |
| OCT | Blue Cross (BC) of Idaho (ID) |
| OCU | Anthem BCBS of Ohio (OH) |
| OCV |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OCW | Anthem Blue Cross(BC) of California (CA) |
| OCX |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OCY |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OCZ |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| ODA |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| ODB | Anthem BCBS of Ohio (OH) |
| ODC | Not Assigned Prefix |
| ODD | Not Assigned Prefix |
| ODE | Not Assigned Prefix |
| ODF | BCBS of Massachusetts (MA) |
| ODG | Not Assigned Prefix |
| ODH | Not Assigned Prefix |
| ODI | BCBS of Western New York (WNY) |
| ODJ | BCBS of Tennessee (TN) |
| ODK |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| ODL | BCBS of Tennessee (TN) |
| ODM | BCBS of Arizona (AZ) |
| ODN | BCBS of Tennessee (TN) |
| ODO |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| ODP | Not Assigned Prefix |
| ODQ | Highmark BCBS of Pennsylvania (PA) |
| ODR |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| ODS | BCBS of Western New York (WNY) |
| ODT | BCBS of Massachusetts (MA) |
| ODU | Not Assigned Prefix |
| ODV | Wellmark |
| ODW | BCBS Blue Care Network Michigan (MI) |
| ODX | BCBS of Alabama (AL) |
| ODY | BCBS Blue Care Network Michigan (MI) |
| ODZ | BCBS Blue Care Network Michigan (MI) |
| OEA | Anthem BCBS of Virginia (VA) |
| OEB | Anthem BCBS of Virginia (VA) |
| OEC | Not Assigned Prefix |
| OED | Not Assigned Prefix |
| OEE | Florida (FL) Blue |
| OEF |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OEG | BCBS of Kansas City |
| OEH | Anthem Blue Cross(BC) of California (CA) |
| OEI | BCBS of Nebraska (NE) |
| OEJ | Blue shield(BS) of California (CA) |
| OEK | BCBS Blue Care Network Michigan (MI) |
| OEL |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OEM | Anthem BCBS of Virginia (VA) |
| OEN | Not Assigned Prefix |
| OEO | Not Assigned Prefix |
| OEP | Not Assigned Prefix |
| OEQ | BCBS Blue Care Network Michigan (MI) |
| OER | Regence BCBS |
| OES | Anthem Blue Cross(BC) of California (CA) |
| OET |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OEU | Highmark BCBS of Pennsylvania (PA) |
| OEV | Highmark Blue Shield (BS) of Pennsylvania (PA) |
| OEW | BCBS of North Dakota (ND) |
| OEX | Not Assigned Prefix |
| OEY | BCBS Blue Care Network Michigan (MI) |
| OEZ | BCBS of South Carolina (SC) / Southcarolinablues |
| OFA | Anthem BCBS of Indiana (IN) |
| OFB | Capital Blue Cross of Pennsylvania (PA) |
| OFC | BCBS Blue Care Network Michigan (MI) |
| OFD | Not Assigned Prefix |
| OFE | Not Assigned Prefix |
| OFF | BCBS of Western New York (WNY) |
| OFG | BCBS of Rhode Island the (RI) |
| OFH | Anthem BCBS of Ohio (OH) |
| OFI | Not Assigned Prefix |
| OFJ | BCBS Blue Care Network Michigan (MI) |
| OFK | Not Assigned Prefix |
| OFL |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OFM |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OFN | BCBS of Tennessee (TN) |
| OFO | Anthem Blue Cross(BC) of California (CA) |
| OFP | Anthem Blue Cross(BC) of California (CA) |
| OFQ | BCBS Blue Care Network Michigan (MI) |
| OFR | Not Assigned Prefix |
| OFS | BCBS of Western New York (WNY) |
| OFT | Blue shield(BS) of California (CA) |
| OFU | BCBS Blue Care Network Michigan (MI) |
| OFV | BCBS Blue Care Network Michigan (MI) |
| OFW | BCBS Blue Care Network Michigan (MI) |
| OFX | Anthem BCBS of Missouri (MO) |
| OFY | Blue shield(BS) of California (CA) |
| OFZ | BCBS Blue Care Network Michigan (MI) |
| OGA | Not Assigned Prefix |
| OGB | Not Assigned Prefix |
| OGC | Wellmark |
| OGD | Anthem BCBS of Ohio (OH) |
| OGE | Not Assigned Prefix |
| OGF | BCBS Blue Care Network Michigan (MI) |
| OGG | Not Assigned Prefix |
| OGH | Anthem BCBS of Georgia (GA) |
| OGI | Not Assigned Prefix |
| OGJ | BCBS Blue Care Network Michigan (MI) |
| OGK | BCBS Blue Care Network Michigan (MI) |
| OGL | Wellmark |
| OGM | Premera BCBS of Alaska (AK) |
| OGN | Anthem BCBS of Kentucky (KY) |
| OGO | BCBS Blue Care Network Michigan (MI) |
| OGP | Not Assigned Prefix |
| OGQ | Not Assigned Prefix |
| OGR | Not Assigned Prefix |
| OGS BCBS Prefix | BCBS of Louisiana(LA) |
| OGT | BCBS of Western New York (WNY) |
| OGU | Highmark BCBS of Pennsylvania (PA) |
| OGV | Not Assigned Prefix |
| OGW | Not Assigned Prefix |
| OGX |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OGY | Not Assigned Prefix |
| OGZ | Not Assigned Prefix |
| OHA | BCBS of South Carolina (SC) / Southcarolinablues |
| OHB | Anthem BCBS of Ohio (OH) |
| OHC | BCBS Blue Care Network Michigan (MI) |
| OHD | BCBS of Texas (TX) |
| OHE | BCBS of Rhode Island the (RI) |
| OHF | Anthem BCBS of Virginia (VA) |
| OHG | Anthem BCBS of Virginia (VA) |
| OHH | Anthem BCBS of Indiana (IN) |
| OHI | BCBS of Louisiana(LA) |
| OHJ | Anthem BCBS of Kentucky (KY) |
| OHK | Wellmark |
| OHL | Highmark BCBS of Pennsylvania (PA) |
| OHM | Blue shield(BS) of Northeastern New York (NeNY) |
| OHN | Wellmark |
| OHO | Anthem BCBS of Ohio (OH) |
| OHP | Anthem BCBS of Ohio (OH) |
| OHQ | Not Assigned Prefix |
| OHR | Anthem BCBS of Colorado (CO) |
| OHS | Anthem BCBS of Ohio (OH) |
| OHT | Anthem BCBS of Ohio (OH) |
| OHU | Wellmark |
| OHV | BCBS of Rhode Island the (RI) |
| OHW | Not Assigned Prefix |
| OHX | BCBS of Rhode Island the (RI) |
| OHY | BCBS Blue Care Network Michigan (MI) |
| OHZ | BCBS of Rhode Island the (RI) |
| OIA | Not Assigned Prefix |
| OIB | Highmark BCBS of Pennsylvania (PA) |
| OIC |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OID | Blue Cross (BC) of Idaho (ID) |
| OIE | Not Assigned Prefix |
| OIF | Not Assigned Prefix |
| OIG | Highmark BCBS of Pennsylvania (PA) |
| OIH | Not Assigned Prefix |
| OII | BCBS Blue Care Network Michigan (MI) |
| OIJ | BCBS Blue Care Network Michigan (MI) |
| OIK | BCBS Blue Care Network Michigan (MI) |
| OIL | Highmark BCBS of Pennsylvania (PA) |
| OIM |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OIN | Highmark BCBS of Pennsylvania (PA) |
| OIO | BCBS Blue Care Network Michigan (MI) |
| OIP | Blue shield(BS) of California (CA) |
| OIQ | BCBS Blue Care Network Michigan (MI) |
| OIR | Highmark BCBS of Pennsylvania (PA) |
| OIS | BCBS of Western New York (WNY) |
| OIT | BCBS Blue Care Network Michigan (MI) |
| OIU | BCBS Blue Care Network Michigan (MI) |
| OIV | BCBS Blue Care Network Michigan (MI) |
| OIW | BCBS Blue Care Network Michigan (MI) |
| OIX | BCBS Blue Care Network Michigan (MI) |
| OIY | BCBS Blue Care Network Michigan (MI) |
| OIZ | Anthem Blue Cross(BC) of California (CA) |
| OJA | Not Assigned Prefix |
| OJB | Not Assigned Prefix |
| OJC | Not Assigned Prefix |
| OJD | Not Assigned Prefix |
| OJE | BCBS Blue Care Network Michigan (MI) |
| OJF | BCBS Blue Care Network Michigan (MI) |
| OJG | Not Assigned Prefix |
| OJH | Not Assigned Prefix |
| OJI | BCBS Blue Care Network Michigan (MI) |
| OJJ | BCBS Blue Care Network Michigan (MI) |
| OJK | BCBS Blue Care Network Michigan (MI) |
| OJL | BCBS Blue Care Network Michigan (MI) |
| OJM | Anthem BCBS of Missouri (MO) |
| OJN | BCBS Blue Care Network Michigan (MI) |
| OJO | BCBS Blue Care Network Michigan (MI) |
| OJP | BCBS of Rhode Island the (RI) |
| OJQ | BCBS Blue Care Network Michigan (MI) |
| OJR | Wellmark |
| OJS | Not Assigned Prefix |
| OJT |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OJU | Not Assigned Prefix |
| OJV | BCBS Blue Care Network Michigan (MI) |
| OJW | Regence BCBS |
| OJX | BCBS Blue Care Network Michigan (MI) |
| OJY | BCBS Blue Care Network Michigan (MI) |
| OJZ | Not Assigned Prefix |
| OKA | Not Assigned Prefix |
| OKB |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OKC | BCBS of Oklahoma (OK) |
| OKD |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OKE |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OKF | BCBS Blue Care Network Michigan (MI) |
| OKG | BCBS Blue Care Network Michigan (MI) |
| OKH | Anthem Blue Cross(BC) of California (CA) |
| OKI | BCBS Blue Care Network Michigan (MI) |
| OKJ | BCBS Blue Care Network Michigan (MI) |
| OKK | BCBS Blue Care Network Michigan (MI) |
| OKL | Arkansas (AR) Blue Cross |
| OKM |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OKN | BCBS Blue Care Network Michigan (MI) |
| OKO | BCBS Blue Care Network Michigan (MI) |
| OKP |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OKQ | BCBS Blue Care Network Michigan (MI) |
| OKR | Anthem BCBS of Colorado (CO) |
| OKS | BCBS of Western New York (WNY) |
| OKT | Anthem BCBS of Ohio (OH) |
| OKU | Not Assigned Prefix |
| OKV | BCBS Blue Care Network Michigan (MI) |
| OKW | Anthem Blue Cross(BC) of California (CA) |
| OKX | BCBS Blue Care Network Michigan (MI) |
| OKY | BCBS Blue Care Network Michigan (MI) |
| OKZ | BCBS Blue Care Network Michigan (MI) |
| OLA | BCBS of Kansas City |
| OLB | Wellmark |
| OLC | Not Assigned Prefix |
| OLD | Blue shield(BS) of California (CA) |
| OLE | Not Assigned Prefix |
| OLF | Not Assigned Prefix |
| OLG | Premera BCBS of Alaska (AK) |
| OLH | BCBS of Arizona (AZ) |
| OLI | BCBS Blue Care Network Michigan (MI) |
| OLJ | Not Assigned Prefix |
| OLK | Not Assigned Prefix |
| OLL | Not Assigned Prefix |
| OLM | Arkansas (AR) Blue Cross |
| OLN | BCBS of Alabama (AL) |
| OLO | Not Assigned Prefix |
| OLP | Not Assigned Prefix |
| OLQ | BCBS Blue Care Network Michigan (MI) |
| OLR | Not Assigned Prefix |
| OLS |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OLT | Wellmark |
| OLU | Anthem BCBS of Colorado (CO) |
| OLV | BCBS Blue Care Network Michigan (MI) |
| OLW | BCBS of Western New York (WNY) |
| OLX | BCBS Blue Care Network Michigan (MI) |
| OLY | BCBS Blue Care Network Michigan (MI) |
| OLZ | BCBS Blue Care Network Michigan (MI) |
| OMA | Anthem BCBS of Ohio (OH) |
| OMB | Anthem BCBS of Ohio (OH) |
| OMC | Not Assigned Prefix |
| OMD |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OME | Wellmark |
| OMF | Not Assigned Prefix |
| OMG | BCBS Blue Care Network Michigan (MI) |
| OMH | Blue shield(BS) of California (CA) |
| OMI | Anthem BCBS of Georgia (GA) |
| OMJ | Not Assigned Prefix |
| OMK | Anthem BCBS of Missouri (MO) |
| OML | Florida (FL) Blue |
| OMM | Not Assigned Prefix |
| OMN | Not Assigned Prefix |
| OMO | Not Assigned Prefix |
| OMP | BCBS Blue Care Network Michigan (MI) |
| OMQ | BCBS of Massachusetts (MA) |
| OMR | BCBS of Rhode Island the (RI) |
| OMS | BCBS of Massachusetts (MA) |
| OMT | BCBS Blue Care Network Michigan (MI) |
| OMU | Not Assigned Prefix |
| OMV |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OMW | Not Assigned Prefix |
| OMX | Anthem BCBS of Colorado (CO) |
| OMY | Not Assigned Prefix |
| OMZ | Blue shield(BS) of California (CA) |
| ONA | Anthem BCBS of Missouri (MO) |
| ONB | Anthem BCBS of Ohio (OH) |
| ONC | Anthem BCBS of Indiana (IN) |
| OND | Wellmark |
| ONE | Anthem BCBS of Indiana (IN) |
| ONF | Not Assigned Prefix |
| ONG | BCBS of Massachusetts (MA) |
| ONH | BCBS of Minnesota (MN) |
| ONI | Anthem BCBS of Indiana (IN) |
| ONJ | Not Assigned Prefix |
| ONK | Not Assigned Prefix |
| ONL | Anthem BCBS of Ohio (OH) |
| ONM | Not Assigned Prefix |
| ONN | Not Assigned Prefix |
| ONO | Blue shield(BS) of California (CA) |
| ONP | Anthem BCBS of Missouri (MO) |
| ONQ | BCBS of Alabama (AL) |
| ONR | Not Assigned Prefix |
| ONS | BCBS of Alabama (AL) |
| ONT | BCBS of Massachusetts (MA) |
| ONU |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| ONV |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| ONW | Anthem BCBS of Indiana (IN) |
| ONX | Anthem BCBS of Indiana (IN) |
| ONY | BCBS of Minnesota (MN) |
| ONZ | Anthem BCBS of Indiana (IN) |
| OOA | Not Assigned Prefix |
| OOB | Blue shield(BS) of California (CA) |
| OOC | BCBS of Massachusetts (MA) |
| OOD | BCBS Blue Care Network Michigan (MI) |
| OOE | BCBS Blue Care Network Michigan (MI) |
| OOF | BCBS Blue Care Network Michigan (MI) |
| OOG | Blue shield(BS) of California (CA) |
| OOH |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OOI | BCBS Blue Care Network Michigan (MI) |
| OOJ | BCBS Blue Care Network Michigan (MI) |
| OOK | BCBS Blue Care Network Michigan (MI) |
| OOL | BCBS of Rhode Island the (RI) |
| OOM | Anthem Blue Cross(BC) of California (CA) |
| OON | BCBS Blue Care Network Michigan (MI) |
| OOO | BCBS Blue Care Network Michigan (MI) |
| OOP | Blue shield(BS) of California (CA) |
| OOQ | BCBS Blue Care Network Michigan (MI) |
| OOR | BCBS of North Carolina (NC) |
| OOS | Blue shield(BS) of California (CA) |
| OOT | Blue shield(BS) of California (CA) |
| OOU | BCBS Blue Care Network Michigan (MI) |
| OOV | BCBS Blue Care Network Michigan (MI) |
| OOW | BCBS Blue Care Network Michigan (MI) |
| OOX | BCBS Blue Care Network Michigan (MI) |
| OOY | Not Assigned Prefix |
| OOZ | BCBS Blue Care Network Michigan (MI) |
| OPA | BCBS of Louisiana(LA) |
| OPB | Highmark BCBS of Pennsylvania (PA) |
| OPC | Not Assigned Prefix |
| OPD | Anthem BCBS of Wisconsin (WI) |
| OPE | Anthem BCBS of Georgia (GA) |
| OPF | Anthem BCBS of Wisconsin (WI) |
| OPG | Anthem Blue Cross(BC) of California (CA) |
| OPH | Not Assigned Prefix |
| OPI | Not Assigned Prefix |
| OPJ | Anthem BCBS of Wisconsin (WI) |
| OPK | Anthem BCBS of Wisconsin (WI) |
| OPL | Not Assigned Prefix |
| OPM | Not Assigned Prefix |
| OPN | Not Assigned Prefix |
| OPO | Not Assigned Prefix |
| OPP | Wellmark |
| OPQ | Not Assigned Prefix |
| OPR | Wellmark |
| OPS | BCBS of Massachusetts (MA) |
| OPT |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OPU | Anthem BCBS of Wisconsin (WI) |
| OPV | Anthem BCBS of Wisconsin (WI) |
| OPW | Anthem BCBS of Wisconsin (WI) |
| OPX | Anthem BCBS of Wisconsin (WI) |
| OPY |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OPZ | Anthem BCBS of Wisconsin (WI) |
| OQA | Not Assigned Prefix |
| OQB | Anthem Blue Cross(BC) of California (CA) |
| OQC |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OQD | BCBS Blue Care Network Michigan (MI) |
| OQE | BCBS Blue Care Network Michigan (MI) |
| OQF | BCBS Blue Care Network Michigan (MI) |
| OQG | BCBS Blue Care Network Michigan (MI) |
| OQH | BCBS Blue Care Network Michigan (MI) |
| OQI | BCBS Blue Care Network Michigan (MI) |
| OQJ | BCBS Blue Care Network Michigan (MI) |
| OQK | BCBS Blue Care Network Michigan (MI) |
| OQL | BCBS Blue Care Network Michigan (MI) |
| OQM | BCBS Blue Care Network Michigan (MI) |
| OQN | BCBS Blue Care Network Michigan (MI) |
| OQO | BCBS Blue Care Network Michigan (MI) |
| OQP | Anthem Blue Cross(BC) of California (CA) |
| OQQ | BCBS Blue Care Network Michigan (MI) |
| OQR | BCBS Blue Care Network Michigan (MI) |
| OQS | Anthem Blue Cross(BC) of California (CA) |
| OQT | BCBS Blue Care Network Michigan (MI) |
| OQU | BCBS Blue Care Network Michigan (MI) |
| OQV | BCBS Blue Care Network Michigan (MI) |
| OQW | BCBS Blue Care Network Michigan (MI) |
| OQX | Not Assigned Prefix |
| OQY | Not Assigned Prefix |
| OQZ | Not Assigned Prefix |
| ORA | Not Assigned Prefix |
| ORB | Wellmark |
| ORC | Anthem BCBS of Kentucky (KY) |
| ORD |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| ORE | BCBS of Tennessee (TN) |
| ORF | BCBS Blue Care Network Michigan (MI) |
| ORG | Not Assigned Prefix |
| ORH | Anthem BCBS of Missouri (MO) |
| ORI | BCBS of South Carolina (SC) / Southcarolinablues |
| ORJ | BCBS Blue Care Network Michigan (MI) |
| ORK | Anthem BCBS of Ohio (OH) |
| ORL | Anthem Blue Cross(BC) of California (CA) |
| ORM | Blue Shield (BS) of Northeastern New York (NeNY) |
| ORN | Horizon BCBS of New Jersey (NJ) |
| ORO | BCBS Blue Care Network Michigan (MI) |
| ORP | Not Assigned Prefix |
| ORQ | BCBS Blue Care Network Michigan (MI) |
| ORR | Not Assigned Prefix |
| ORS | Regence BCBS |
| ORT | Capital Blue Cross of Pennsylvania (PA) |
| ORU | BCBS of Tennessee (TN) |
| ORV | BCBS Blue Care Network Michigan (MI) |
| ORW | Not Assigned Prefix |
| ORX | Blue Cross (BC) of Idaho (ID) |
| ORY | Blue shield(BS) of California (CA) |
| ORZ | Horizon BCBS of New Jersey (NJ) |
| OSA | Not Assigned Prefix |
| OSB | BCBS of Alabama (AL) |
| OSC | Not Assigned Prefix |
| OSD | Not Assigned Prefix |
| OSE | BCBS of Arizona (AZ) |
| OSF | Not Assigned Prefix |
| OSG | Not Assigned Prefix |
| OSH |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OSI |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OSJ | Anthem BCBS of Ohio (OH) |
| OSK | Not Assigned Prefix |
| OSL | BCBS of Nebraska (NE) |
| OSM | BCBS of Illinois (IL) |
| OSN | Not Assigned Prefix |
| OSO |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OSP | Not Assigned Prefix |
| OSQ | Highmark BCBS of Pennsylvania (PA) |
| OSR |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OSS | Blue shield(BS) of California (CA) |
| OST | Highmark BCBS of Delaware (DE) |
| OSU | Not Assigned Prefix |
| OSV |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OSW | Anthem BCBS of Ohio (OH) |
| OSX | Wellmark |
| OSY | BCBS of Kansas City |
| OSZ | Anthem BCBS of Virginia (VA) |
| OTA | Florida (FL) Blue |
| OTB | Anthem BCBS of Virginia (VA) |
| OTC | BCBS of Nebraska (NE) |
| OTD | Anthem Blue Cross(BC) of California (CA) |
| OTE | Anthem BCBS of Indiana (IN) |
| OTF | Anthem BCBS of Indiana (IN) |
| OTG | BCBS Blue Care Network Michigan (MI) |
| OTH | BCBS of Tennessee (TN) |
| OTI | BCBS of North Dakota (ND) |
| OTJ |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OTK | Wellmark |
| OTL | BCBS of Alabama (AL) |
| OTM | Blue shield(BS) of California (CA) |
| OTN | BCBS of North Dakota (ND) |
| OTO BCBS Prefix | Not Assigned Prefix |
| OTP | Blue shield(BS) of California (CA) |
| OTQ | Anthem BCBS of Connecticut (CT) |
| OTR | Not Assigned Prefix |
| OTS |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OTT | Wellmark |
| OTU | Wellmark |
| OTV | Not Assigned Prefix |
| OTW | Anthem BCBS of Georgia (GA) |
| OTX | Blue shield(BS) of California (CA) |
| OTY | Regence BCBS |
| OTZ | Anthem BCBS of Ohio (OH) |
| OUA | Regence BCBS |
| OUB | BCBS of Rhode Island the (RI) |
| OUC | BCBS of South Carolina (SC) / Southcarolinablues |
| OUD | BCBS Blue Care Network Michigan (MI) |
| OUE | BCBS of Rhode Island the (RI) |
| OUF | Regence BCBS |
| OUG | Not Assigned Prefix |
| OUH | Empire BCBS of New York (NY) |
| OUI | Horizon BCBS of New Jersey (NJ) |
| OUJ | BCBS Blue Care Network Michigan (MI) |
| OUK | BCBS Blue Care Network Michigan (MI) |
| OUL | BCBS Blue Care Network Michigan (MI) |
| OUM | BCBS Blue Care Network Michigan (MI) |
| OUN | BCBS Blue Care Network Michigan (MI) |
| OUO | BCBS Blue Care Network Michigan (MI) |
| OUP | Wellmark |
| OUQ | BCBS Blue Care Network Michigan (MI) |
| OUR | Horizon BCBS of New Jersey (NJ) |
| OUS | Not Assigned Prefix |
| OUT | Horizon BCBS of New Jersey (NJ) |
| OUU | BCBS Blue Care Network Michigan (MI) |
| OUV | BCBS Blue Care Network Michigan (MI) |
| OUW | Highmark BCBS of West Virginia (WVA) |
| OUX | BCBS Blue Care Network Michigan (MI) |
| OUY | BCBS Blue Care Network Michigan (MI) |
| OUZ | BCBS Blue Care Network Michigan (MI) |
| OVA | Not Assigned Prefix |
| OVB | Not Assigned Prefix |
| OVC |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OVD | BCBS Blue Care Network Michigan (MI) |
| OVE | Not Assigned Prefix |
| OVF | Not Assigned Prefix |
| OVG | BCBS Blue Care Network Michigan (MI) |
| OVH | Premera BCBS of Alaska (AK) |
| OVI | BCBS Blue Care Network Michigan (MI) |
| OVJ | Not Assigned Prefix |
| OVK | Not Assigned Prefix |
| OVL | BCBS of Western New York (WNY) |
| OVM | Wellmark |
| OVN | BCBS Blue Care Network Michigan (MI) |
| OVO | BCBS Blue Care Network Michigan (MI) |
| OVP | Anthem BCBS of Indiana (IN) |
| OVQ | BCBS Blue Care Network Michigan (MI) |
| OVR |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OVS | Not Assigned Prefix |
| OVT | Anthem BCBS of Ohio (OH) |
| OVU | BCBS Blue Care Network Michigan (MI) |
| OVV | BCBS Blue Care Network Michigan (MI) |
| OVW | Highmark BCBS of West Virginia (WVA) |
| OVX | BCBS Blue Care Network Michigan (MI) |
| OVY | BCBS Blue Care Network Michigan (MI) |
| OVZ | BCBS Blue Care Network Michigan (MI) |
| OWA | Wellmark |
| OWB |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OWC | Regence BCBS |
| OWD |
Carefirst BCBS of Maryland the (MD), District of Columbia (DC) and the Northern Virginia (VA)
|
| OWE | Florida (FL) Blue |
| OWF | Wellmark |
| OWG | BCBS of Western New York (WNY) |
| OWH | Anthem BCBS of Connecticut (CT) |
| OWI | Anthem BCBS of Ohio (OH) |
| OWJ | Anthem BCBS of Virginia (VA) |
| OWK | BCBS Blue Care Network Michigan (MI) |
| OWL | Blue shield(BS) of California (CA) |
| OWM | Not Assigned Prefix |
| OWN | Not Assigned Prefix |
| OWO | BCBS Blue Care Network Michigan (MI) |
| OWP | Not Assigned Prefix |
| OWQ | BCBS Blue Care Network Michigan (MI) |
| OWR | BCBS Blue Care Network Michigan (MI) |
| OWS | Anthem BCBS of Virginia (VA) |
| OWT | Anthem BCBS of Georgia (GA) |
| OWU | BCBS Blue Care Network Michigan (MI) |
| OWV | Not Assigned Prefix |
| OWW | Anthem BCBS of Virginia (VA) |
| OWX | Anthem BCBS of Ohio (OH) |
| OWY | Anthem BCBS of Ohio (OH) |
| OWZ | Wellmark |
| OXA | BCBS of Western New York (WNY) |
| OXB | Not Assigned Prefix |
| OXC | Not Assigned Prefix |
| OXD | Anthem Blue Cross(BC) of California (CA) |
| OXE | BCBS Blue Care Network Michigan (MI) |
| OXF | Not Assigned Prefix |
| OXG | BCBS Blue Care Network Michigan (MI) |
| OXH | BCBS Blue Care Network Michigan (MI) |
| OXI | BCBS Blue Care Network Michigan (MI) |
| OXJ | BCBS Blue Care Network Michigan (MI) |
| OXK | BCBS Blue Care Network Michigan (MI) |
| OXL | BCBS Blue Care Network Michigan (MI) |
| OXM | Premera BCBS of Alaska (AK) |
| OXN | Regence BCBS |
| OXO | BCBS of Western New York (WNY) |
| OXP | Anthem Blue Cross(BC) of California (CA) |
| OXQ | BCBS Blue Care Network Michigan (MI) |
| OXR | BCBS Blue Care Network Michigan (MI) |
| OXS | Not Assigned Prefix |
| OXT | BCBS Blue Care Network Michigan (MI) |
| OXU | BCBS Blue Care Network Michigan (MI) |
| OXV | BCBS Blue Care Network Michigan (MI) |
| OXW | BCBS Blue Care Network Michigan (MI) |
| OXX | BCBS Blue Care Network Michigan (MI) |
| OXY | BCBS Blue Care Network Michigan (MI) |
| OXZ | Not Assigned Prefix |
| OYA | Wellmark |
| OYB | Anthem Blue Cross(BC) of California (CA) |
| OYC | Horizon BCBS of New Jersey (NJ) |
| OYD | Blue Cross (BC) of Idaho (ID) |
| OYE | Not Assigned Prefix |
| OYF | BCBS Blue Care Network Michigan (MI) |
| OYG | BCBS Blue Care Network Michigan (MI) |
| OYH | Anthem BCBS of Ohio (OH) |
| OYI | BCBS Blue Care Network Michigan (MI) |
| OYJ | BCBS Blue Care Network Michigan (MI) |
| OYK | BCBS Blue Care Network Michigan (MI) |
| OYL | Blue shield(BS) of California (CA) |
| OYM |
Independence Blue Cross(BC) of Philadelphia(Phi) and the Southeastern Pennsylvania(PA)
|
| OYN | BCBS Blue Care Network Michigan (MI) |
| OYO | BCBS Blue Care Network Michigan (MI) |
| OYP | Not Assigned Prefix |
| OYQ | BCBS Blue Care Network Michigan (MI) |
| OYR | BCBS Blue Care Network Michigan (MI) |
| OYS | Blue shield(BS) of California (CA) |
| OYT | BCBS Blue Care Network Michigan (MI) |
| OYU | BCBS Blue Care Network Michigan (MI) |
| OYV | Not Assigned Prefix |
| OYW | BCBS Blue Care Network Michigan (MI) |
| OYX | BCBS Blue Care Network Michigan (MI) |
| OYY | BCBS Blue Care Network Michigan (MI) |
| OYZ | Not Assigned Prefix |
| OZA | Anthem BCBS of Missouri (MO) |
| OZB | Anthem BCBS of Wisconsin (WI) |
| OZC | Horizon BCBS of New Jersey (NJ) |
| OZD | Anthem BCBS of Virginia (VA) |
| OZE | BCBS Blue Care Network Michigan (MI) |
| OZF | BCBS Blue Care Network Michigan (MI) |
| OZG | Blue shield(BS) of California (CA) |
| OZH | Not Assigned Prefix |
| OZI | BCBS Blue Care Network Michigan (MI) |
| OZJ | BCBS Blue Care Network Michigan (MI) |
| OZK | Anthem BCBS of Missouri (MO) |
| OZL | BCBS Blue Care Network Michigan (MI) |
| OZM | Anthem BCBS of Virginia (VA) |
| OZN | BCBS Blue Care Network Michigan (MI) |
| OZO | Not Assigned Prefix |
| OZP | Anthem Blue Cross(BC) of California (CA) |
| OZQ | BCBS Blue Care Network Michigan (MI) |
| OZR | BCBS Blue Care Network Michigan (MI) |
| OZS | BCBS of Western New York (WNY) |
| OZT | BCBS Blue Care Network Michigan (MI) |
| OZU | BCBS Blue Care Network Michigan (MI) |
| OZV | BCBS Blue Care Network Michigan (MI) |
| OZW | Not Assigned Prefix |
| OZX | Anthem BCBS of Missouri (MO) |
| OZY | BCBS Blue Care Network Michigan (MI) |
| OZZ | BCBS Blue Care Network Michigan (MI) |
