BCBS Prefix Lookup EAA – EZZ
List of BCBS Prefixes EAA to EZZ
This list of bcbs prefixes includes both alpha prefixes and alpha numeric prefixes. We continue to add additional prefixes as we find them along with the blue cross blue shield provider phone number. Remember that each table has a search box at the top so it’s not necessary to page through the list of bc prefixes to find the one you need. Just enter the bc prefix in the search box to find it quickly. We appreciate your patience and support as we update our bcbs prefix lists.
| Prefix | Plan Name |
|---|---|
| E2A | Blue Cross Blue Shield of Texas |
| E2B | Blue Cross Blue Shield of Texas |
| E2C | Anthem BCBS of Indiana |
| E2E | Regence Blue Cross Blue Shield of Oregon |
| E2F | Blue Cross of California |
| E2G | Blue Cross of California |
| E2K | Blue Cross Blue Shield of Illinois |
| E2L | Blue Cross Blue Shield of Massachusetts |
| E2M | Blue Cross Blue Shield of Texas |
| E2N | Blue Cross Blue Shield of Illinois |
| E2P | Blue Cross of California |
| E2Q | Blue Cross of California |
| E2R | Blue Cross of California |
| E2S | Regence Blue Cross Blue Shield of Oregon |
| E2T | Blue Cross Blue Shield of Massachusetts |
| E2U | Blue Cross of California |
| E2V | Blue Cross Blue Shield of Illinois |
| E2W | Blue Cross of California |
| E2X | Anthem Blue Cross of California |
| E2Y | Blue Cross of California |
| E2Z | Blue Cross of California |
| E3A | Blue Cross Blue Shield of Massachusetts |
| E3B | Blue Cross of California |
| E3D | Blue Cross of California |
| E3E | Anthem Blue Cross of California |
| E3G | Blue Cross Blue Shield of Illinois |
| E3M | Anthem BCBS of Wisconsin |
| E3N | Premera Blue Cross |
| E3P | Anthem BCBS of Wisconsin |
| E3S | Blue Cross Blue Shield of Illinois |
| E3U | Empire Blue Cross Blue Shield |
| E3V | Blue Cross Blue Shield of Illinois |
| E3X | Anthem BCBS of Wisconsin |
| E3Y | Blue Cross Blue Shield of Georgia |
| E3Z | Anthem BCBS of Wisconsin |
| E4A | Blue Cross Blue Shield of Massachusetts |
| E4B | Blue Cross Blue Shield of Massachusetts |
| E4C | Blue Cross Blue Shield of Massachusetts |
| E4D | Blue Cross Blue Shield of Massachusetts |
| E4E | Blue Cross Blue Shield of Massachusetts |
| E4L | Anthem BCBS of Indiana |
| E4T | Blue Cross of California |
| E5A | Blue Cross Blue Shield of Texas |
| E5H | Premera Blue Cross |
| E5N | Blue Cross Blue Shield of Texas |
| E5S | Blue Cross Blue Shield of Texas |
| E5X | Premera Blue Cross |
| E6A | Anthem BCBS of Ohio |
| E6D | Empire Blue Cross Blue Shield |
| E6T | Anthem BCBS of Wisconsin |
| E8C | Blue Cross Blue Shield of Texas |
| E8E | Blue Cross Blue Shield of Texas |
| E8N | Blue Cross Blue Shield of Texas |
| E9A | Anthem BCBS of Wisconsin |
| E9B | Anthem BCBS of Wisconsin |
| EAA | Blue Cross Blue Shield of Rhode Island |
| EAB | Blue Cross Blue Shield of South Carolina |
| EAC | Anthem BCBS of Virginia |
| EAD | Blue Cross Blue Shield of Illinois |
| EAE | Regence Blue Cross Blue Shield of Oregon |
| EAF | Blue Cross Blue Shield of Massachusetts |
| EAG | Capital Blue Cross |
| EAH | BCBS of Alabama |
| EAI | Anthem BCBS of Ohio |
| EAJ | CareFirst BCBS |
| EAK | Anthem BCBSf of Ohio |
| EAL | Anthem BCBS of Connecticut |
| EAM | BCBS of Alabama |
| EAN | CareFirst BCBS |
| EAO | CareFirst BCBS |
| EAP | CareFirst BCBS |
| EAQ | Blue Cross Blue Shield of South Carolina |
| EAR | Blue Cross Blue Shield of Texas |
| EAS | Blue Shield of California |
| EAT | Blue Cross Blue Shield of Texas |
| EAU | Unassigned |
| EAV | Blue Cross Blue Shield of Texas |
| EAW | Blue Cross of California |
| EAX | Blue Cross Blue Shield of Texas |
| EAY | Blue Cross Blue Shield of Texas |
| EAZ | Blue Cross Blue Shield of Arizona |
| EBA | Blue Cross of California |
| EBB | Independence Blue Cross |
| EBC | Blue Cross Blue Shield of Texas |
| EBD | Wellmark BCBS |
| EBE | CareFirst BCBS |
| EBF | Blue Shield of California |
| EBG | Blue Cross Blue Shield of Kansas City |
| EBH | Capital Blue Cross |
| EBI | BCBS of Alabama |
| EBJ | Anthem BCBS of Wisconsin |
| EBK | Wellmark BCBS |
| EBL | Wellmark BCBS |
| EBM | Blue Cross Blue Shield of Michigan |
| EBN | Empire Blue Cross Blue Shield |
| EBO | CareFirst BCBS |
| EBP | CareFirst BCBS |
| EBQ | Blue Cross Blue Shield of Illinois |
| EBR | Wellmark BCBS |
| EBS | Blue Cross of California |
| EBT | Blue Cross Blue Shield of Louisiana |
| EBU | Highmark BCBS of Pennsylvania |
| EBV | Blue Cross of California |
| EBW | Blue Cross Blue Shield of Tennessee Commercial |
| EBX | Wellmark BCBS |
| EBY | Blue Cross Blue Shield of Illinois |
| EBZ | Blue Shield of California |
| ECA | CareFirst BCBS |
| ECB | BCBS of Alabama |
| ECC | Blue Cross Blue Shield of Tennessee Commercial |
| ECD | Blue Shield of Northeastern New York |
| ECE | Blue Cross Blue Shield of Mississippi |
| ECF | Unassigned |
| ECG | Anthem BCBS of Wisconsin |
| ECH | Anthem BCBS of Ohio |
| ECI | CareFirst BCBS |
| ECJ | Anthem BCBS of Ohio |
| ECK | Blue Cross Blue Shield of North Carolina |
| ECL | Anthem BCBS of Ohio |
| ECM | CareFirst BCBS |
| ECN | Anthem BCBS of Missouri |
| ECO | Blue Cross Blue Shield of Illinois |
| ECP | Blue Cross Blue Shield of Texas |
| ECQ | Highmark BCBS of Pennsylvania |
| ECR | Anthem BCBS of Ohio |
| ECS | Anthem BCBS of Ohio |
| ECT | CareFirst BCBS |
| ECU | Blue Cross of Idaho |
| ECV | Anthem BCBS of Ohio |
| ECW | Regence Blue Cross Blue Shield of Utah |
| ECX | Blue Cross Blue Shield of Minnesota |
| ECY | Blue Cross Blue Shield of Texas |
| ECZ | Blue Cross Blue Shield of Texas |
| EDA | Blue Cross Blue Shield of Georgia |
| EDB | Anthem BCBS of Ohio |
| EDC | Blue Cross Blue Shield of South Carolina |
| EDD | Blue Cross Blue Shield of Georgia |
| EDE | Highmark BCBS of Pennsylvania |
| EDF | Anthem BCBS of Wisconsin |
| EDG | Capital Blue Cross |
| EDH | Blue Cross of Idaho |
| EDI | Blue Shield of California |
| EDJ | Blue Cross Blue Shield of Illinois |
| EDK | Empire Blue Cross Blue Shield |
| EDL | CareFirst BCBS |
| EDM | Premera Blue Cross |
| EDN | CareFirst BCBS |
| EDO | Blue Cross Blue Shield of Arkansas |
| EDP | Blue Cross Blue Shield of Michigan |
| EDQ | CareFirst BCBS |
| EDR | Blue Cross Blue Shield of Minnesota |
| EDS | Blue Cross Blue Shield of South Carolina |
| EDT | CareFirst BCBS |
| EDU | BCBS of Alabama |
| EDV | Blue Cross Blue Shield of South Carolina |
| EDW | Anthem BCBS of Ohio |
| EDX | Blue Cross Blue Shield of Texas |
| EDY | CareFirst BCBS |
| EDZ | Blue Cross Blue Shield of Massachusetts |
| EEA | Excellus BCBS |
| EEB | Florida Blue |
| EEC | Blue Cross Blue Shield of Illinois |
| EED | Blue Cross Blue Shield of Illinois |
| EEE | CareFirst BCBS |
| EEF | Blue Cross Blue Shield of Minnesota |
| EEG | BCBS of Alabama |
| EEH | Unassigned |
| EEI | Blue Shield of Northeastern New York |
| EEJ | Blue Cross Blue Shield of Illinois |
| EEK | Blue Cross Blue Shield of Nebraska |
| EEL | Unassigned |
| EEM | Blue Cross of Idaho |
| EEN | Independence Blue Cross |
| EEO | Blue Shield of California |
| EEP | CareFirst BCBS |
| EEQ | Wellmark BCBS |
| EER | Blue Shield of California |
| EES | Blue Cross Blue Shield of South Carolina |
| EET | Excellus BCBS |
| EEU | Blue Cross Blue Shield of Nebraska |
| EEV | CareFirst BCBS |
| EEW | Anthem BCBS of Wisconsin |
| EEX | Capital Blue Cross |
| EEY | Empire Blue Cross Blue Shield |
| EEZ | Blue Cross Blue Shield of Illinois |
| EFA | Blue Cross of California |
| EFB | CareFirst BCBS |
| EFC | Wellmark BCBS |
| EFD | Blue Shield of California |
| EFE | Unassigned |
| EFF | Blue Cross Blue Shield of Massachusetts |
| EFG | Blue Cross Blue Shield of Minnesota |
| EFH | Regence Blue Cross Blue Shield of Oregon |
| EFI | Highmark BCBS of Pennsylvania |
| EFJ | Blue Cross Blue Shield of Massachusetts |
| EFK | Wellmark BCBS |
| EFL | Blue Cross Blue Shield of Texas |
| EFM | Anthem BCBS of Colorado |
| EFN | CareFirst BCBS |
| EFO | Blue Shield of California |
| EFP | Blue Cross Blue Shield of Georgia |
| EFQ | Blue Cross Blue Shield of Massachusetts |
| EFR | CareFirst BCBS |
| EFS | Blue Cross Blue Shield of South Carolina |
| EFT | Unassigned |
| EFU | Anthem BCBS of Virginia |
| EFV | Blue Cross Blue Shield of Illinois |
| EFW | Blue Cross of California |
| EFX | Wellmark BCBS |
| EFY | Blue Shield of California |
| EFZ | Blue Cross Blue Shield of Illinois |
| EGA | Blue Cross Blue Shield of Illinois |
| EGB | Highmark BCBS of Pennsylvania |
| EGC | Blue Cross Blue Shield of Louisiana |
| EGD | Independence Blue Cross |
| EGE | Unassigned |
| EGF | Anthem BCBS of Ohio |
| EGG | CareFirst BCBS |
| EGH | Blue Cross of California |
| EGI | Wellmark BCBS |
| EGJ | CareFirst BCBS |
| EGK | CareFirst BCBS |
| EGL | Anthem BCBS of Missouri |
| EGM | Blue Cross Blue Shield of Texas |
| EGN | Premera Blue Cross |
| EGO | Independence Blue Cross |
| EGP | Blue Shield of California |
| EGQ | CareFirst BCBS |
| EGR | Blue Cross Blue Shield of Texas |
| EGS | Blue Cross of California |
| EGT | Blue Cross Blue Shield of Massachusetts |
| EGU | Regence Blue Cross Blue Shield of Oregon |
| EGV | Blue Cross Blue Shield of Arkansas |
| EGW | CareFirst BCBS |
| EGX | Blue Cross of California |
| EGY | CareFirst BCBS |
| EGZ | Premera Blue Cross |
| EHA | CareFirst BCBS |
| EHB | Unassigned |
| EHC | Unassigned |
| EHD | CareFirst BCBS |
| EHE | Unassigned |
| EHF | Anthem BCBS of Connecticut |
| EHG | Anthem BCBS of Maine |
| EHH | Anthem BCBS of New Hampshire |
| EHI | BCBS of Illinois |
| EHJ | Blue Cross Blue Shield of Massachusetts |
| EHK | Anthem BCBS of New Hampshire |
| EHL | Blue Cross Blue Shield of Minnesota |
| EHM | Blue Shield of California |
| EHN | Blue Cross Blue Shield of Nebraska |
| EHO | Horizon Blue Cross Blue Shield of New Jersey |
| EHP | Blue Cross Blue Shield of Illinois |
| EHQ | CareFirst BCBS |
| EHR | Unassigned |
| EHS | Blue Shield of California |
| EHT | CareFirst BCBS |
| EHU | CareFirst BCBS |
| EHV | Unassigned |
| EHW | Unassigned |
| EHX | Unassigned |
| EHY | Blue Cross Blue Shield of Illinois |
| EHZ | Blue Cross Blue Shield of Georgia |
| EIA | CareFirst BCBS |
| EIB | BCBS of Alabama |
| EIC | Blue Shield of California |
| EID | CareFirst BCBS |
| EIE | Blue Cross Blue Shield of South Carolina |
| EIF | CareFirst BCBS |
| EIG | Independence Blue Cross |
| EIH | CareFirst BCBS |
| EII | Blue Cross Blue Shield of South Carolina |
| EIJ | Blue Cross of California |
| EIK | CareFirst BCBS |
| EIL | Blue Cross Blue Shield of North Carolina |
| EIM | Independence Blue Cross |
| EIN | CareFirst BCBS |
| EIO | BCBS of Alabama |
| EIP | Unassigned |
| EIQ | Premera Blue Cross |
| EIR | Highmark BCBS of Pennsylvania |
| EIS | Blue Shield of California |
| EIT | Carefirst Administrators |
| EIU | Blue Cross Blue Shield of Illinois |
| EIV | Blue Cross Blue Shield of South Carolina |
| EIW | Blue Cross Blue Shield of Michigan |
| EIX | BCBS of Alabama |
| EIY | Blue Shield of California |
| EIZ | Independence Blue Cross |
| EJA | Anthem BCBS of Wisconsin |
| EJB | Anthem BCBS of Colorado |
| EJC | Blue Cross Blue Shield of Texas |
| EJD | Blue Cross of California |
| EJE | Blue Cross Blue Shield of Michigan |
| EJF | CareFirst BCBS |
| EJG | Anthem BCBS of Wisconsin |
| EJH | Highmark BCBS of Pennsylvania |
| EJI | Blue Cross Blue Shield of Michigan |
| EJJ | Blue Cross of California |
| EJK | Blue Cross of California |
| EJL | Blue Cross Blue Shield of Mississippi |
| EJM | Anthem BCBS of Missouri |
| EJN | Blue Cross of California |
| EJO | Blue Cross of California |
| EJP | Blue Cross Blue Shield of Minnesota |
| EJQ | Blue Cross of California |
| EJR | Highmark BCBS of Pennsylvania |
| EJS | Blue Cross Blue Shield of Illinois |
| EJT | Blue Cross Blue Shield of Texas |
| EJU | Blue Cross of California |
| EJV | Blue Cross of California |
| EJW | Blue Cross Blue Shield of Michigan |
| EJX | Blue Cross Blue Shield of Arizona |
| EJY | Blue Cross Blue Shield of Arizona |
| EJZ | Blue Cross Blue Shield of Tennessee Commercial |
| EKA | Blue Cross Blue Shield of South Carolina |
| EKB | Wellmark BCBS |
| EKC | Anthem BCBS of Ohio |
| EKD | Blue Cross of California |
| EKE | Blue Cross Blue Shield of Texas |
| EKF | Blue Cross Blue Shield of South Carolina |
| EKG | Wellmark BCBS |
| EKH | Blue Cross Blue Shield of New Mexico |
| EKI | CareFirst BCBS |
| EKJ | Blue Cross Blue Shield of South Carolina |
| EKK | Blue Cross Blue Shield of Minnesota |
| EKL | Blue Cross Blue Shield of Kansas City |
| EKM | Anthem BCBS of Ohio |
| EKN | Premera Blue Cross |
| EKO | CareFirst BCBS |
| EKP | Blue Cross Blue Shield of South Carolina |
| EKQ | CareFirst BCBS |
| EKR | CareFirst BCBS |
| EKS | Highmark BCBS of Pennsylvania |
| EKT | Blue Shield of California |
| EKU | Anthem BCBS of Ohio |
| EKV | CareFirst BCBS |
| EKW | Blue Cross Blue Shield of Georgia |
| EKX | Wellmark BCBS |
| EKY | Anthem BCBS of Ohio |
| EKZ | CareFirst BCBS |
| ELA | Blue Cross Blue Shield of Minnesota |
| ELB | Blue Cross Blue Shield of Texas |
| ELC | CareFirst BCBS |
| ELD | Anthem BCBS of Ohio |
| ELE | Blue Cross Blue Shield of Texas |
| ELF | Anthem BCBS of Wisconsin |
| ELG | Blue Cross Blue Shield of Minnesota |
| ELH | Anthem BCBS of Connecticut |
| ELI | Blue Cross Blue Shield of Massachusetts |
| ELJ | Blue Cross of California |
| ELK | Wellmark BCBS |
| ELL | Blue Cross of California |
| ELM | Blue Cross Blue Shield of Illinois |
| ELN | CareFirst BCBS |
| ELO | Blue Cross Blue Shield of South Carolina |
| ELP | Blue Cross Blue Shield of Minnesota |
| ELQ | Anthem BCBS of Missouri |
| ELR | BCBS of Western New York |
| ELS | Unassigned |
| ELT | Blue Cross Blue Shield of Illinois |
| ELU | Unassigned |
| ELV | Blue Cross Blue Shield of South Carolina |
| ELW | Anthem BCBS of Missouri |
| ELX | Wellmark BCBS |
| ELY | Anthem BCBS of Ohio |
| ELZ | Anthem BCBS of Kentucky |
| EM2 | Unassigned |
| EMA | Blue Cross Blue Shield of South Carolina |
| EMB | Anthem BCBS of Ohio |
| EMC | Blue Cross Blue Shield of South Carolina |
| EMD | Wellmark BCBS |
| EME | Wellmark BCBS |
| EMF | Blue Shield of California |
| EMG | CareFirst BCBS |
| EMH | Independence Blue Cross |
| EMI | Anthem BCBS of Indiana |
| EMJ | Anthem BCBS of Ohio |
| EMK | Blue Cross Blue Shield of South Carolina |
| EML | CareFirst BCBS |
| EMM | CareFirst BCBS |
| EMN | Highmark BCBS of Pennsylvania |
| EMO | Blue Cross Blue Shield of South Carolina |
| EMP | Blue Cross Blue Shield of Illinois |
| EMQ | BCBS of Alabama |
| EMR | BCBS of Alabama |
| EMS | Blue Cross Blue Shield of Georgia |
| EMT | Blue Cross of California |
| EMU | CareFirst BCBS |
| EMV | BCBS of Alabama |
| EMW | Blue Cross Blue Shield of Michigan |
| EMX | Blue Cross Blue Shield of Georgia |
| EMY | Premera Blue Cross |
| EMZ | Blue Cross Blue Shield of Georgia |
| ENA | Blue Cross of California |
| ENB | Florida Blue |
| ENC | Anthem BCBS of Virginia |
| END | Blue Cross Blue Shield of Oklahoma |
| ENE | Independence Blue Cross |
| ENF | Blue Cross Blue Shield of Texas |
| ENG | Wellmark BCBS |
| ENH | Unassigned |
| ENI | Blue Cross Blue Shield of Minnesota |
| ENJ | Blue Cross Blue Shield of Minnesota |
| ENK | Blue Cross of Idaho |
| ENL | Blue Cross Blue Shield of Massachusetts |
| ENM | CareFirst BCBS |
| ENN | Blue Cross Blue Shield of South Carolina |
| ENO | Anthem BCBS of Kentucky |
| ENP | Blue Cross Blue Shield of Nebraska |
| ENQ | Wellmark BCBS |
| ENR | Blue Cross Blue Shield of Massachusetts |
| ENS | Capital Blue Cross |
| ENT | Blue Cross Blue Shield of Texas |
| ENU | BCBS of Alabama |
| ENV | Independence Blue Cross |
| ENW | Blue Shield of California |
| ENX | Blue Cross of Idaho |
| ENY | Anthem BCBS of Wisconsin |
| ENZ | Blue Cross Blue Shield of Illinois |
| EOA | Anthem BCBS of Ohio |
| EOB | CareFirst BCBS |
| EOC | Blue Shield of California |
| EOD | Highmark BCBS of Pennsylvania |
| EOE | Blue Cross of Idaho |
| EOF | Capital Blue Cross |
| EOG | Anthem BCBS of Missouri |
| EOH | Blue Cross of California |
| EOI | CareFirst BCBS |
| EOJ | Blue Cross Blue Shield of Michigan |
| EOK | Wellmark BCBS |
| EOL | Unassigned |
| EOM | Highmark BCBS of Pennsylvania |
| EON | Horizon Blue Cross Blue Shield of New Jersey |
| EOO | Blue Cross Blue Shield of South Carolina |
| EOP | Blue Cross of California |
| EOQ | Blue Cross Blue Shield of South Carolina |
| EOR | Unassigned |
| EOS | Independence Blue Cross |
| EOT | Blue Cross Blue Shield of South Carolina |
| EOU | Wellmark BCBS |
| EOV | Blue Cross Blue Shield of Michigan |
| EOW | Unassigned |
| EOX | Premera Blue Cross |
| EOY | Blue Cross Blue Shield of South Carolina |
| EOZ | Blue Cross Blue Shield of South Carolina |
| EPA | Anthem BCBS of Ohio |
| EPB | Blue Shield of California |
| EPC | Anthem BCBS of Missouri |
| EPD | Blue Cross Blue Shield of Michigan |
| EPE | Blue Cross of Idaho |
| EPF | Blue Shield of California |
| EPG | Blue Shield of California |
| EPH | Blue Cross Blue Shield of South Carolina |
| EPI | Wellmark BCBS |
| EPJ | Blue Cross Blue Shield of Rhode Island |
| EPK | Blue Cross Blue Shield of Tennessee Commercial |
| EPL | Anthem BCBS of Missouri |
| EPM | Blue Shield of Northeastern New York |
| EPN | Blue Cross Blue Shield of Texas |
| EPO | Blue Shield of California |
| EPP | Empire Blue Cross Blue Shield |
| EPQ | Capital Blue Cross |
| EPR | Independence Blue Cross |
| EPS | Blue Cross Blue Shield of Illinois |
| EPT | BCBS of Alabama |
| EPU | Blue Shield of California |
| EPV | Blue Cross Blue Shield of Massachusetts |
| EPW | Blue Cross of California |
| EPX | Independence Blue Cross |
| EPY | CareFirst BCBS |
| EPZ | Blue Cross Blue Shield of Minnesota |
| EQA | CareFirst BCBS |
| EQB | BCBS of Alabama |
| EQC | Blue Shield of California |
| EQD | Blue Cross Blue Shield of Massachusetts |
| EQE | Blue Cross Blue Shield of Nebraska |
| EQF | BCBS of Western New York |
| EQG | Blue Cross Blue Shield of Tennessee Commercial |
| EQH | Blue Cross Blue Shield of Tennessee Commercial |
| EQI | Blue Cross Blue Shield of South Carolina |
| EQJ | Independence Blue Cross |
| EQK | Anthem BCBS of Indiana |
| EQL | BCBS of Western New York |
| EQM | Blue Cross Blue Shield of Massachusetts |
| EQN | Blue Cross Blue Shield of South Carolina |
| EQO | Blue Cross Blue Shield of South Carolina |
| EQP | Empire Blue Cross Blue Shield |
| EQQ | CareFirst BCBS |
| EQR | BCBS of Western New York |
| EQS | Independence Blue Cross |
| EQT | Anthem BCBS of Ohio |
| EQU | Blue Cross Blue Shield of Texas |
| EQV | Empire Blue Cross Blue Shield |
| EQW | CareFirst BCBS |
| EQX | Blue Cross Blue Shield of South Carolina |
| EQY | Blue Cross of California |
| EQZ | Blue Cross Blue Shield of Minnesota |
| ERA | BCBS of Western New York |
| ERB | Premera Blue Cross |
| ERC | Regence Blue Shield of Washington |
| ERD | Blue Cross Blue Shield of South Carolina |
| ERE | Premera Blue Cross |
| ERF | CareFirst BCBS |
| ERG | BCBS of Alabama |
| ERH | Blue Cross Blue Shield of Massachusetts |
| ERI | Blue Cross Blue Shield of Rhode Island |
| ERJ | Blue Cross Blue Shield of South Carolina |
| ERK | Blue Cross Blue Shield of Massachusetts |
| ERL | CareFirst BCBS |
| ERM | Blue Cross Blue Shield of Massachusetts |
| ERN | Anthem BCBS of Ohio |
| ERO | Blue Cross Blue Shield of South Carolina |
| ERP | Capital Blue Cross |
| ERQ | Unassigned |
| ERR | Blue Cross Blue Shield of Arkansas |
| ERS | Independence Blue Cross |
| ERT | Wellmark BCBS |
| ERU | CareFirst BCBS |
| ERV | Blue Cross Blue Shield of Rhode Island |
| ERW | Wellmark BCBS |
| ERX | Blue Shield of California |
| ERY | Anthem BCBS of Ohio |
| ERZ | Unassigned |
| ESA | Wellmark BCBS |
| ESB | Blue Cross Blue Shield of Michigan |
| ESC | Unassigned |
| ESD | Blue Cross Blue Shield of Massachusetts |
| ESE | Anthem BCBS of Ohio |
| ESF | Blue Shield of California |
| ESG | Blue Cross Blue Shield of Texas |
| ESH | CareFirst BCBS |
| ESI | Capital Blue Cross |
| ESJ | Capital Blue Cross |
| ESK | Wellmark BCBS |
| ESL | Unassigned |
| ESM | Anthem BCBS of Missouri |
| ESN | Anthem BCBS of Missouri |
| ESO | Regence Blue Cross Blue Shield of Oregon |
| ESP | Unassigned |
| ESQ | Wellmark BCBS |
| ESR | CareFirst BCBS |
| ESS | Blue Cross Blue Shield of Massachusetts |
| EST | BCBS of Western New York |
| ESU | Blue Shield of California |
| ESV | BCBS of Western New York |
| ESW | Blue Shield of California |
| ESX | Wellmark BCBS |
| ESY | Blue Cross Blue Shield of Georgia |
| ESZ | Blue Cross Blue Shield of Tennessee Commercial |
| ETA | Blue Cross Blue Shield of Illinois |
| ETB | Blue Cross Blue Shield of Minnesota |
| ETC | Anthem BCBS of Virginia |
| ETD | Blue Cross of California |
| ETE | Premera Blue Cross |
| ETF | Blue Cross Blue Shield of Georgia |
| ETG | Blue Cross Blue Shield of Illinois |
| ETH | Blue Cross Blue Shield of Illinois |
| ETI | Anthem BCBS of Missouri |
| ETJ | Blue Cross Blue Shield of Georgia |
| ETK | Anthem BCBS of Wisconsin |
| ETL | Blue Shield of Northeastern New York |
| ETM | Highmark BCBS of Pennsylvania |
| ETN | Unassigned |
| ETO | Unassigned |
| ETP | Blue Cross Blue Shield of Georgia |
| ETQ | Blue Cross Blue Shield of Kansas City |
| ETR | Empire Blue Cross Blue Shield |
| ETS | Blue Cross Blue Shield of Massachusetts |
| ETT | Highmark BCBS of Pennsylvania |
| ETU | Blue Cross Blue Shield of Massachusetts |
| ETV | Anthem BCBS of Missouri |
| ETW | CareFirst BCBS |
| ETX | Blue Cross Blue Shield of South Carolina |
| ETY | Unassigned |
| ETZ | Blue Cross Blue Shield of Georgia |
| EUA | Blue Cross of California |
| EUB | Unassigned |
| EUC | Anthem BCBS of Ohio |
| EUD | Blue Cross Blue Shield of South Carolina |
| EUE | CareFirst BCBS |
| EUF | Regence Blue Cross Blue Shield of Utah |
| EUG | Regence Blue Shield of Washington |
| EUH | Blue Cross Blue Shield of Illinois |
| EUI | Anthem BCBS of Ohio |
| EUJ | Wellmark BCBS |
| EUK | Blue Cross Blue Shield of Illinois |
| EUL | Anthem BCBS of Ohio |
| EUM | Blue Cross Blue Shield of Vermont |
| EUN | Blue Shield of California |
| EUO | Blue Cross Blue Shield of South Carolina |
| EUP | Blue Cross Blue Shield of Georgia |
| EUQ | Unassigned |
| EUR | Blue Cross Blue Shield of Nebraska |
| EUS | Florida Blue |
| EUT | CareFirst BCBS |
| EUU | Florida Blue |
| EUV | Blue Cross Blue Shield of Michigan |
| EUW | CareFirst BCBS |
| EUX | CareFirst BCBS |
| EUY | Blue Cross Blue Shield of Georgia |
| EUZ | CareFirst BCBS |
| EVA | Wellmark BCBS |
| EVB | Blue Cross Blue Shield of Tennessee Commercial |
| EVC | Blue Cross Blue Shield of Massachusetts |
| EVD | Blue Shield of California |
| EVE | Blue Cross Blue Shield of North Carolina |
| EVF | BCBS of Alabama |
| EVG | Regence Blue Shield of Washington |
| EVH | Wellmark BCBS |
| EVI | Blue Cross Blue Shield of Arkansas |
| EVJ | Blue Cross Blue Shield of Massachusetts |
| EVK | Wellmark BCBS |
| EVL | Blue Cross Blue Shield of Georgia |
| EVM | Anthem BCBS of Missouri |
| EVN | Regence Blue Cross Blue Shield of Oregon |
| EVO | Blue Shield of California |
| EVP | Blue Cross Blue Shield of South Carolina |
| EVQ | Anthem BCBS of Colorado |
| EVR | Blue Cross of California |
| EVS | Blue Cross Blue Shield of South Carolina |
| EVT | Blue Cross Blue Shield of Vermont |
| EVU | Blue Cross Blue Shield of South Carolina |
| EVV | Blue Shield of California |
| EVW | Blue Cross Blue Shield of Massachusetts |
| EVX | Blue Cross Blue Shield of Massachusetts |
| EVY | Anthem BCBS of Ohio |
| EVZ | CareFirst BCBS |
| EWA | CareFirst BCBS |
| EWB | Anthem BCBS of Ohio |
| EWC | CareFirst BCBS |
| EWD | Blue Cross Blue Shield of Minnesota |
| EWE | Unassigned |
| EWF | Empire Blue Cross Blue Shield |
| EWG | Anthem BCBS of Ohio |
| EWH | Wellmark BCBS |
| EWI | Blue Cross Blue Shield of Michigan |
| EWJ | Blue Cross of California |
| EWK | Unassigned |
| EWL | Unassigned |
| EWM | Anthem BCBS of Ohio |
| EWN | Unassigned |
| EWO | Blue Cross Blue Shield of South Carolina |
| EWP | Anthem BCBS of Missouri |
| EWQ | Anthem BCBS of Connecticut |
| EWR | Independence Blue Cross |
| EWS | Horizon Blue Cross Blue Shield of New Jersey |
| EWT | Blue Cross Blue Shield of Georgia |
| EWU | Anthem BCBS of Connecticut |
| EWV | Anthem BCBS of Virginia |
| EWW | Anthem BCBS of Ohio |
| EWX | Blue Cross Blue Shield of Arizona |
| EWY | Wellmark BCBS |
| EWZ | Blue Cross of California |
| EXA | BCBS of Arkansas |
| EXB | Unassigned |
| EXC | Anthem BCBS of Ohio |
| EXD | Premera Blue Cross |
| EXE | Blue Cross Blue Shield of Georgia |
| EXF | Anthem BCBS of Missouri |
| EXG | Blue Cross Blue Shield of Minnesota |
| EXH | Anthem BCBS of Ohio |
| EXI | Anthem BCBS of Ohio |
| EXJ | Empire Blue Cross Blue Shield |
| EXK | Anthem BCBS of Ohio |
| EXL | Empire Blue Cross Blue Shield |
| EXM | Anthem BCBS of Missouri |
| EXN | Blue Cross Blue Shield of Texas |
| EXO | Blue Shield of California |
| EXP | Premera Blue Cross |
| EXQ | Blue Cross of California |
| EXR | Blue Cross Blue Shield of Massachusetts |
| EXS | Blue Cross Blue Shield of Illinois |
| EXT | Anthem BCBS of Virginia |
| EXU | Blue Cross Blue Shield of Massachusetts |
| EXV | Blue Cross Blue Shield of Texas |
| EXW | Unassigned |
| EXX | Blue Cross Blue Shield of Arkansas |
| EXY | Blue Cross Blue Shield of Massachusetts |
| EXZ | Premera Blue Cross |
| EYA | Blue Cross Blue Shield of Massachusetts |
| EYB | CareFirst BCBS |
| EYC | Horizon Blue Cross Blue Shield of New Jersey |
| EYD | Anthem BCBS of Connecticut |
| EYE | Wellmark BCBS |
| EYF | Wellmark BCBS |
| EYG | Empire Blue Cross Blue Shield |
| EYH | Anthem BCBS of Ohio |
| EYI | Blue Cross Blue Shield of Georgia |
| EYJ | Blue Cross Blue Shield of South Carolina |
| EYK | Wellmark BCBS |
| EYL | Horizon Blue Cross Blue Shield of New Jersey |
| EYM | Wellmark BCBS |
| EYN | Blue Cross Blue Shield of Minnesota |
| EYO | Blue Cross Blue Shield of Georgia |
| EYP | Wellmark BCBS |
| EYQ | Blue Cross Blue Shield of South Carolina |
| EYR | Blue Cross Blue Shield of Illinois |
| EYS | Blue Cross Blue Shield of Tennessee Commercial |
| EYT | Horizon Blue Cross Blue Shield of New Jersey |
| EYU | Anthem BCBS of Ohio |
| EYV | Blue Cross of Idaho |
| EYW | CareFirst BCBS |
| EYX | Unassigned |
| EYY | Capital Blue Cross |
| EYZ | Blue Cross Blue Shield of Tennessee Commercial |
| EZA | Blue Cross Blue Shield of Oklahoma |
| EZB | Regence Blue Cross Blue Shield of Oregon |
| EZC | Anthem BCBS of Wisconsin |
| EZD | Premera Blue Cross |
| EZE | Anthem BCBS of Missouri |
| EZF | Capital Blue Cross |
| EZG | Blue Cross Blue Shield of Texas |
| EZH | Blue Cross Blue Shield of Massachusetts |
| EZI | Blue Cross Blue Shield of Massachusetts |
| EZJ | Blue Cross Blue Shield of Georgia |
| EZK | Blue Cross Blue Shield of Georgia |
| EZL | Empire Blue Cross Blue Shield |
| EZM | Anthem BCBS of Ohio |
| EZN | Blue Cross Blue Shield of South Carolina |
| EZO | Capital Blue Cross |
| EZP | Blue Cross Blue Shield of Minnesota |
| EZQ | Blue Cross Blue Shield of South Carolina |
| EZR | Anthem BCBS of Missouri |
| EZS | CareFirst BCBS |
| EZT | Blue Cross of California |
| EZU | Blue Cross Blue Shield of South Carolina |
| EZV | Anthem BCBS of Ohio |
| EZW | Blue Cross Blue Shield of Louisiana |
| EZX | Blue Cross Blue Shield of Massachusetts |
| EZY | BCBS of Alabama |
| EZZ | Wellmark BCBS |