BCBS Prefix Lookup KAA – KZZ
List of BCBS Prefixes KAA to KZZ
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 |
|---|---|
| K2A | Blue Cross Blue Shield of Texas |
| K2C | Regence Blue Cross Blue Shield of Oregon |
| K2D | Blue Cross Blue Shield of Illinois |
| K2F | Blue Cross Blue Shield of Illinois |
| K2H | BCBS of Western New York |
| K2N | Blue Cross Blue Shield of Vermont |
| K2S | Premera Blue Cross |
| K2T | Blue Cross Blue Shield of Minnesota |
| K2X | Blue Cross Blue Shield of Illinois |
| K3A | Blue Cross of California |
| K3B | Empire Blue Cross Blue Shield |
| K3C | Anthem BCBS of Virginia |
| K3G | Regence Blue Cross Blue Shield of Oregon |
| K3H | Highmark BCBS of Pennsylvania |
| K3S | Premera Blue Cross |
| K3T | Blue Cross of California |
| K3V | Regence Blue Shield of Washington |
| K4A | Empire Blue Cross Blue Shield |
| K4F | Regence Blue Shield of Washington |
| K4S | Blue Cross Blue Shield of Massachusetts |
| K5A | Blue Cross of California |
| K5D | Blue Cross Blue Shield of Illinois |
| K7X | Blue Cross Blue Shield of Texas |
| K8Y | Blue Cross Blue Shield of Arizona |
| K8Z | Blue Cross Blue Shield of Arizona |
| KAA | Unassigned |
| KAB | Wellmark BCBS |
| KAC | Blue Cross Blue Shield of Texas |
| KAD | Blue Cross Blue Shield of Michigan |
| KAE | Blue Cross Blue Shield of Illinois |
| KAF | Blue Cross Blue Shield of South Carolina |
| KAG | Anthem BCBS of Georgia |
| KAH | Anthem BCBS of Indiana |
| KAI | Blue Cross Blue Shield of Arizona |
| KAJ | Blue Cross Blue Shield of Louisiana |
| KAK | BCBS of Western New York |
| KAL | Blue Cross Blue Shield of Alabama |
| KAM | Wellmark BCBS |
| KAN | Unassigned |
| KAO | Blue Cross Blue Shield of Minnesota |
| KAP | Independence Blue Cross |
| KAQ | Blue Cross Blue Shield of Michigan |
| KAR | Unassigned |
| KAS | Blue Cross of California |
| KAT | Blue Cross Blue Shield of Illinois |
| KAU | Blue Cross Blue Shield of Illinois |
| KAV | Regence Blue Cross Blue Shield of Oregon |
| KAW | Anthem BCBS of Georgia |
| KAX | Blue Cross of California |
| KAY | Excellus BCBS |
| KAZ | Blue Cross Blue Shield of Illinois |
| KBA | Blue Cross Blue Shield of Missouri |
| KBB | Anthem BCBS of Colorado |
| KBC | Anthem BCBS of Virginia |
| KBD | Blue Cross Blue Shield of South Carolina |
| KBE | Anthem BCBS of Wisconsin |
| KBF | Independence Blue Cross |
| KBG | Regence Blue Cross Blue Shield of Oregon |
| KBH | Horizon Blue Cross Blue Shield of New Jersey |
| KBI | Capital Blue Cross |
| KBJ | Empire Blue Cross Blue Shield |
| KBK | Blue Cross of California |
| KBL | Anthem BCBS of Wisconsin |
| KBM | Blue Cross Blue Shield of Nebraska |
| KBN | Unassigned |
| KBO | Blue Cross Blue Shield of North Carolina |
| KBP | CareFirst BCBS |
| KBQ | CareFirst BCBS |
| KBR | Premera Blue Cross |
| KBS | Anthem BCBS of Wisconsin |
| KBT | Wellmark BCBS |
| KBU | Blue Shield of California |
| KBV | Anthem BCBS of Georgia |
| KBW | Anthem BCBS of Wisconsin |
| KBX | Anthem BCBS of Kentucky |
| KBY | Blue Shield of Northeastern New York |
| KBZ | Blue Cross of California |
| KCA | Wellmark BCBS |
| KCB | Wellmark BCBS |
| KCC | Blue Cross of California |
| KCD | Regence Blue Shield of Washington |
| KCE | Anthem BCBS of Ohio |
| KCF | Blue Cross of California |
| KCG | Blue Cross Blue Shield of Illinois |
| KCH | Empire Blue Cross Blue Shield |
| KCI | Blue Cross Blue Shield of Tennessee |
| KCJ | Blue Cross Blue Shield of Texas |
| KCK | Anthem BCBS of Ohio |
| KCL | Blue Cross Blue Shield of Minnesota |
| KCM | Highmark BCBS of Pennsylvania |
| KCN | Highmark BCBS of Pennsylvania |
| KCO | Blue Cross Blue Shield of Michigan |
| KCP | Blue Cross of California |
| KCQ | Premera Blue Cross |
| KCR | Unassigned |
| KCS | Wellmark BCBS |
| KCT | Regence Blue Cross Blue Shield of Oregon |
| KCU | Blue Cross Blue Shield of Michigan |
| KCV | Wellmark BCBS |
| KCW | Blue Cross Blue Shield of Michigan |
| KCX | Blue Shield of California |
| KCY | Anthem BCBS of Ohio |
| KCZ | Wellmark BCBS |
| KDA | Blue Cross Blue Shield of Michigan |
| KDB | Blue Cross Blue Shield of Michigan |
| KDC | Blue Cross Blue Shield of South Carolina |
| KDD | Blue Cross Blue Shield of Nebraska |
| KDE | Blue Shield of California |
| KDF | Blue Cross Blue Shield of South Carolina |
| KDG | Blue Cross Blue Shield of Massachusetts |
| KDH | Anthem BCBS of Ohio |
| KDI | Blue Shield of California |
| KDJ | Horizon Blue Cross Blue Shield of New Jersey |
| KDK | Blue Cross Blue Shield of Tennessee |
| KDL | Blue Cross Blue Shield of Kansas City |
| KDM | Blue Cross Blue Shield of Massachusetts |
| KDN | Anthem BCBS of Wisconsin |
| KDO | Blue Cross Blue Shield of Michigan |
| KDP | Horizon Blue Cross Blue Shield of New Jersey |
| KDQ | Horizon Blue Cross Blue Shield of New Jersey |
| KDR | Highmark BCBS of Pennsylvania |
| KDS | Capital Blue Cross |
| KDT | Blue Cross Blue Shield of Massachusetts |
| KDU | Blue Cross Blue Shield of Vermont |
| KDV | Anthem BCBS of Georgia |
| KDW | Blue Cross Blue Shield of South Carolina |
| KDX | Empire Blue Cross Blue Shield |
| KDY | CareFirst BCBS |
| KDZ | Blue Shield of California |
| KEA | Wellmark BCBS |
| KEB | Blue Cross of California |
| KEC | Horizon Blue Cross Blue Shield of New Jersey |
| KED | Blue Cross Blue Shield of Illinois |
| KEE | Blue Cross of Idaho |
| KEF | Anthem BCBS of Indiana |
| KEG | CareFirst BCBS |
| KEH | CareFirst BCBS |
| KEI | Blue Cross Blue Shield of Michigan |
| KEJ | Blue Shield of California |
| KEK | Blue Cross of California |
| KEL | Blue Cross Blue Shield of South Carolina |
| KEM | Blue Cross Blue Shield of South Carolina |
| KEN | Empire Blue Cross Blue Shield |
| KEO | Wellmark BCBS |
| KEP | Blue Cross Blue Shield of Illinois |
| KEQ | Highmark BCBS of Pennsylvania |
| KER | Regence Blue Cross Blue Shield of Oregon |
| KES | Anthem BCBS of Indiana |
| KET | CareFirst BCBS |
| KEU | CareFirst BCBS |
| KEV | Independence Blue Cross |
| KEW | BCBS of Michigan |
| KEX | Blue Cross Blue Shield of Illinois |
| KEY | Regence Blue Shield of Washington |
| KEZ | Anthem BCBS of Connect |
| KFA | BCBS of Western New York |
| KFB | Regence Blue Shield of Washington |
| KFC | Blue Cross Blue Shield of Illinois |
| KFD | Blue Shield of California |
| KFE | Anthem BCBS of Wisconsin |
| KFF | Wellmark BCBS |
| KFG | CareFirst BCBS |
| KFH | Blue Cross Blue Shield of Nebraska |
| KFI | Unassigned |
| KFJ | Anthem BCBS of New Hampshire |
| KFK | Blue Cross Blue Shield of Alabama |
| KFL | Blue Cross of California |
| KFM | Blue Cross of California |
| KFN | Blue Cross Blue Shield of Illinois |
| KFO | Blue Cross of California |
| KFP | Blue Shield of California |
| KFQ | Anthem BCBS of Ohio |
| KFR | Blue Cross of California |
| KFS | Anthem BCBS of Virginia |
| KFT | Blue Cross Blue Shield of Illinois |
| KFU | Anthem BCBS of New Hampshire |
| KFV | Anthem BCBS of Indiana |
| KFW | Anthem BCBS of Virginia |
| KFX | CareFirst BCBS |
| KFY | Premera Blue Cross |
| KFZ | Blue Cross Blue Shield of Minnesota |
| KGA | BCBS of Florida |
| KGB | Unassigned |
| KGC | BCBS of Florida |
| KGD | Blue Cross of California |
| KGE | Independence Blue Cross |
| KGF | Blue Cross of California |
| KGG | Anthem BCBS of Ohio |
| KGH | Blue Cross Blue Shield of Louisiana |
| KGI | CareFirst BCBS |
| KGJ | Blue Cross Blue Shield of South Carolina |
| KGK | Anthem BCBS of Ohio |
| KGL | Anthem BCBS of Nevada |
| KGM | Blue Cross Blue Shield of Arizona |
| KGN | Blue Cross Blue Shield of Texas |
| KGO | Blue Shield of California |
| KGP | CareFirst BCBS |
| KGQ | CareFirst BCBS |
| KGR | Anthem BCBS of Ohio |
| KGS | Blue Cross Blue Shield of Kansas |
| KGT | Anthem BCBS of Ohio |
| KGU | Blue Cross Blue Shield of Illinois |
| KGV | Anthem BCBS of Ohio |
| KGW | Anthem Blue Cross of California |
| KGX | Anthem BCBS of Virginia |
| KGY | Wellmark BCBS |
| KGZ | Anthem BCBS of Ohio |
| KHA | Blue Cross Blue Shield of Illinois |
| KHB | Blue Cross Blue Shield of Alabama |
| KHC | Highmark BCBS of Pennsylvania |
| KHD | Wellmark BCBS |
| KHE | Anthem BCBS of Wisconsin |
| KHF | Unassigned |
| KHG | Blue Shield of California |
| KHH | Blue Cross Blue Shield of Alabama |
| KHI | Blue Cross of California |
| KHJ | Empire Blue Cross Blue Shield |
| KHK | Blue Cross of California |
| KHL | Anthem BCBS of Wisconsin |
| KHM | Independence Blue Cross |
| KHN | Anthem BCBS of Wisconsin |
| KHO | Blue Cross of Idaho |
| KHP | Anthem BCBS of Ohio |
| KHQ | CareFirst BCBS |
| KHR | Capital Blue Cross |
| KHS | Premera Blue Cross |
| KHT | Blue Cross Blue Shield of Minnesota |
| KHU | Wellmark BCBS |
| KHV | CareFirst BCBS |
| KHW | Blue Cross of California |
| KHX | Anthem BCBS of Wisconsin |
| KHY | Anthem BCBS of Wisconsin |
| KHZ | Wellmark BCBS |
| KIA | Anthem BCBS of Georgia |
| KIB | Anthem BCBS of Georgia |
| KIC | Wellmark BCBS |
| KID | Blue Cross Blue Shield of Alabama |
| KIE | Anthem BCBS of Georgia |
| KIF | Blue Cross Blue Shield of Alabama |
| KIG | Empire Blue Cross Blue Shield |
| KIH | Empire Blue Cross Blue Shield |
| KII | Blue Shield of California |
| KIJ | Blue Cross Blue Shield of Alabama |
| KIK | Blue Cross Blue Shield of Illinois |
| KIL | Unassigned |
| KIM | BCBS of Western New York |
| KIN | Regence Blue Cross Blue Shield of Oregon |
| KIO | Empire Blue Cross Blue Shield |
| KIP | Unassigned |
| KIQ | Unassigned |
| KIR | Regence Blue Shield of Washington |
| KIS | Capital Blue Cross |
| KIT | Blue Cross Blue Shield of Illinois |
| KIU | Blue Cross Blue Shield of Alabama |
| KIV | Anthem BCBS of Virginia |
| KIW | Anthem BCBS of Virginia |
| KIX | Anthem BCBS of Virginia |
| KIY | BCBS of Western New York |
| KIZ | Blue Cross of California |
| KJA | Anthem BCBS of Georgia |
| KJB | CareFirst BCBS |
| KJC | Blue Cross of California |
| KJD | Blue Cross Blue Shield of Alabama |
| KJE | Blue Cross of California |
| KJF | Blue Cross Blue Shield of Illinois |
| KJG | Blue Cross Blue Shield of Illinois |
| KJH | Blue Cross Blue Shield of Illinois |
| KJI | Blue Cross Blue Shield of Missouri |
| KJJ | CareFirst BCBS |
| KJK | Blue Shield of California |
| KJL | Blue Shield of California |
| KJM | Blue Cross Blue Shield of Illinois |
| KJN | Blue Cross Blue Shield of Missouri |
| KJO | Anthem BCBS of Ohio |
| KJP | Horizon Blue Cross Blue Shield of New Jersey |
| KJQ | Anthem BCBS of Missouri |
| KJR | Highmark BCBS of Pennsylvania |
| KJS | Unassigned |
| KJT | Wellmark BCBS |
| KJU | Anthem BCBS of Missouri |
| KJV | Empire Blue Cross Blue Shield |
| KJW | Blue Cross Blue Shield of Illinois |
| KJX | BCBS of Western New York |
| KJY | Highmark BCBS of Pennsylvania |
| KJZ | Unassigned |
| KKA | Blue Cross Blue Shield of Alabama |
| KKB | Anthem BCBS of Ohio |
| KKC | Blue Cross Blue Shield of Michigan |
| KKD | Blue Cross of California |
| KKE | Blue Cross Blue Shield of Oklahoma |
| KKF | Blue Cross of California |
| KKG | Blue Cross Blue Shield of Illinois |
| KKH | Blue Cross Blue Shield of Illinois |
| KKI | Blue Cross of California |
| KKJ | Blue Cross Blue Shield of Texas |
| KKK | Unassigned |
| KKL | Wellmark BCBS |
| KKM | Blue Cross of California |
| KKN | Horizon Blue Cross Blue Shield of New Jersey |
| KKO | Blue Cross Blue Shield of Michigan |
| KKP | Blue Cross Blue Shield of Illinois |
| KKQ | Blue Cross Blue Shield of Arkansas |
| KKR | Blue Cross Blue Shield of Michigan |
| KKS | Wellmark BCBS |
| KKT | Anthem BCBS of Kentucky |
| KKU | Blue Cross Blue Shield of Minnesota |
| KKV | Anthem BCBS of Kentucky |
| KKW | Blue Cross of California |
| KKX | Blue Cross Blue Shield of Nebraska |
| KKY | Premera Blue Cross |
| KKZ | Blue Cross Blue Shield of Illinois |
| KLA | Blue Cross Blue Shield of Nebraska |
| KLB | Anthem BCBS of Ohio |
| KLC | Premera Blue Cross |
| KLD | CareFirst BCBS |
| KLE | Anthem BCBS of Ohio |
| KLF | CareFirst BCBS |
| KLG | Blue Cross Blue Shield of Michigan |
| KLH | Blue Cross Blue Shield of Nebraska |
| KLI | Anthem BCBS of Georgia |
| KLJ | Premera Blue Cross |
| KLK | Anthem BCBS of Virginia |
| KLL | Empire Blue Cross Blue Shield |
| KLM | Blue Cross Blue Shield of Michigan |
| KLN | Blue Cross Blue Shield of Michigan |
| KLO | Empire Blue Cross Blue Shield |
| KLP | Blue Cross Blue Shield of Michigan |
| KLQ | Blue Cross of California |
| KLR | Anthem BCBS of Virginia |
| KLS | Blue Cross Blue Shield of Minnesota |
| KLT | Blue Cross Blue Shield of Illinois |
| KLU | CareFirst BCBS |
| KLV | BCBS of Western New York |
| KLW | Blue Cross of California |
| KLX | Horizon Blue Cross Blue Shield of New Jersey |
| KLY | Blue Cross of California |
| KLZ | Premera Blue Cross |
| KMA | Blue Shield of California |
| KMB | Anthem BCBS of Wisconsin |
| KMC | Wellmark BCBS |
| KMD | Highmark BCBS of Pennsylvania |
| KME | Wellmark BCBS |
| KMF | BCBS of Florida |
| KMG | Blue Shield of Northeastern New York |
| KMH | BCBS of Florida |
| KMI | Blue Shield of California |
| KMJ | Empire Blue Cross Blue Shield |
| KMK | Blue Cross Blue Shield of Illinois |
| KML | Blue Cross of California |
| KMM | Highmark BCBS of Pennsylvania |
| KMN | Highmark BCBS of Pennsylvania |
| KMO | Blue Shield of California |
| KMP | Blue Cross Blue Shield of Nebraska |
| KMQ | Blue Cross of Idaho |
| KMR | Wellmark BCBS |
| KMS | Blue Cross Blue Shield of South Carolina |
| KMT | Blue Cross Blue Shield of Michigan |
| KMU | Blue Cross Blue Shield of Michigan |
| KMV | Anthem BCBS of Maine |
| KMW | Blue Cross of California |
| KMX | Anthem BCBS of Maine |
| KMY | Empire Blue Cross Blue Shield |
| KMZ | Anthem BCBS of Ohio |
| KNA | Anthem BCBS of Ohio |
| KNB | Highmark BCBS of Pennsylvania |
| KNC | Anthem BCBS of Ohio |
| KND | Anthem BCBS of Ohio |
| KNE | Blue Cross Blue Shield of Illinois |
| KNF | Independence Blue Cross |
| KNG | Wellmark BCBS |
| KNH | BCBS of Illinois |
| KNI | Anthem BCBS of Missouri |
| KNJ | Blue Shield of California |
| KNK | Anthem BCBS of Georgia |
| KNL | Anthem BCBS of Georgia |
| KNM | Unassigned |
| KNN | Empire Blue Cross Blue Shield |
| KNO | Anthem BCBS of Wisconsin |
| KNP | Blue Cross Blue Shield of Texas |
| KNQ | Blue Cross of California |
| KNR | Blue Cross of California |
| KNS | Blue Cross Blue Shield of Illinois |
| KNT | Independence Blue Cross |
| KNU | Anthem BCBS of Ohio |
| KNV | CareFirst BCBS |
| KNW | Wellmark BCBS |
| KNX | Blue Cross Blue Shield of Tennessee |
| KNY | BCBS of Western New York |
| KNZ | Blue Cross Blue Shield of North Carolina |
| KOA | BCBS of Western New York |
| KOB | Blue Shield of California |
| KOC | Blue Cross Blue Shield of Massachusetts |
| KOD | BCBS of Western New York |
| KOE | Anthem BCBS of Georgia |
| KOF | Wellmark BCBS |
| KOG | Blue Shield of California |
| KOH | Unassigned |
| KOI | Independence Blue Cross |
| KOJ | Blue Cross Blue Shield of Michigan |
| KOK | Blue Shield of California |
| KOL | Anthem BCBS of Ohio |
| KOM | Blue Cross Blue Shield of Illinois |
| KON | Blue Cross Blue Shield of Illinois |
| KOO | Blue Cross of Idaho |
| KOP | Anthem BCBS of Wisconsin |
| KOQ | Anthem BCBS of Ohio |
| KOR | Blue Cross Blue Shield of Michigan |
| KOS | Unassigned |
| KOT | BCBS of Western New York |
| KOU | Blue Cross Blue Shield of Michigan |
| KOV | Blue Cross of California |
| KOW | Blue Cross of California |
| KOX | Blue Cross of Idaho |
| KOY | Independence Blue Cross |
| KOZ | Blue Cross Blue Shield of Michigan |
| KPA | Anthem BCBS of Ohio |
| KPB | Blue Cross Blue Shield of Massachusetts |
| KPC | Blue Cross of California |
| KPD | Anthem BCBS of Virginia |
| KPE | Anthem BCBS of Georgia |
| KPF | Regence Blue Cross Blue Shield of Oregon |
| KPG | Anthem BCBS of Ohio |
| KPH | Horizon Blue Cross Blue Shield of New Jersey |
| KPI | Blue Shield of California |
| KPJ | Blue Cross Blue Shield of Illinois |
| KPK | Blue Cross Blue Shield of Texas |
| KPL | Blue Cross Blue Shield of Nebraska |
| KPM | Blue Cross Blue Shield of South Carolina |
| KPN | Wellmark BCBS |
| KPO | Blue Shield of California |
| KPP | Anthem BCBS of Virginia |
| KPQ | Blue Cross Blue Shield of Illinois |
| KPR | Capital Blue Cross |
| KPS | Anthem BCBS of Kentucky |
| KPT | Blue Cross Blue Shield of Minnesota |
| KPU | Horizon Blue Cross Blue Shield of New Jersey |
| KPV | Blue Cross Blue Shield of Illinois |
| KPW | Anthem BCBS of Wisconsin |
| KPX | Anthem BCBS of Wisconsin |
| KPY | Independence Blue Cross |
| KPZ | Unassigned |
| KQA | Wellmark BCBS |
| KQB | Unassigned |
| KQC | Blue Shield of California |
| KQD | Horizon Blue Cross Blue Shield of New Jersey |
| KQE | Blue Cross Blue Shield of Minnesota |
| KQF | Blue Cross Blue Shield of Massachusetts |
| KQG | Blue Cross Blue Shield of Alabama |
| KQH | Wellmark BCBS |
| KQI | Blue Cross Blue Shield of Rhode Island |
| KQJ | Blue Cross Blue Shield of North Carolina |
| KQK | Premera Blue Cross |
| KQL | Horizon Blue Cross Blue Shield of New Jersey |
| KQM | Horizon Blue Cross Blue Shield of New Jersey |
| KQN | Blue Cross Blue Shield of Texas |
| KQO | Blue Cross Blue Shield of Michigan |
| KQP | Anthem BCBS of Wisconsin |
| KQQ | BCBS of Western New York |
| KQR | Anthem BCBS of Wisconsin |
| KQS | Horizon Blue Cross Blue Shield of New Jersey |
| KQT | Regence Blue Cross Blue Shield of Oregon |
| KQU | Premera Blue Cross |
| KQV | Regence Blue Cross Blue Shield of Oregon |
| KQW | Blue Cross Blue Shield of Michigan |
| KQX | Blue Shield of California |
| KQY | Unassigned |
| KQZ | Unassigned |
| KRA | Blue Cross of California |
| KRB | Empire Blue Cross Blue Shield |
| KRC | Wellmark BCBS |
| KRD | Wellmark BCBS |
| KRE | Anthem BCBS of Ohio |
| KRF | Unassigned |
| KRG | Unassigned |
| KRH | Wellmark BCBS |
| KRI | Blue Cross Blue Shield of Rhode Island |
| KRJ | Wellmark BCBS |
| KRK | Unassigned |
| KRL | Wellmark BCBS |
| KRM | Blue Cross Blue Shield of Rhode Island |
| KRN | Anthem BCBS of Missouri |
| KRO | Anthem BCBS of Colorado |
| KRP | Blue Cross Blue Shield of Illinois |
| KRQ | Unassigned |
| KRR | Blue Cross Blue Shield of Illinois |
| KRS | Unassigned |
| KRT | Unassigned |
| KRU | Anthem BCBS of Ohio |
| KRV | Unassigned |
| KRW | Anthem BCBS of Ohio |
| KRX | Anthem BCBS of Wisconsin |
| KRY | Unassigned |
| KRZ | Blue Cross of California |
| KSA | Blue Cross Blue Shield of Kansas |
| KSB | Regence Blue Shield of Washington |
| KSC | Blue Cross Blue Shield of Michigan |
| KSD | Independence Blue Cross |
| KSE | Blue Cross Blue Shield of Kansas |
| KSF | Blue Cross of California |
| KSG | Anthem BCBS of Ohio |
| KSH | Empire Blue Cross Blue Shield |
| KSI | Blue Cross Blue Shield of Tennessee |
| KSJ | Blue Cross Blue Shield of South Carolina |
| KSK | Blue Cross Blue Shield of Texas |
| KSL | Blue Cross Blue Shield of Massachusetts |
| KSM | Blue Cross Blue Shield of Massachusetts |
| KSN | Empire Blue Cross Blue Shield |
| KSO | Blue Cross Blue Shield of Massachusetts |
| KSP | Blue Cross Blue Shield of Michigan |
| KSQ | Blue Cross Blue Shield of Texas |
| KSR | CareFirst BCBS |
| KSS | Blue Cross Blue Shield of Texas |
| KST | Blue Cross Blue Shield of Arizona |
| KSU | Anthem BCBS of Ohio |
| KSV | Blue Cross of California |
| KSW | Blue Cross Blue Shield of Tennessee |
| KSX | Anthem BCBS of Georgia |
| KSY | Blue Cross of California |
| KSZ | Blue Cross Blue Shield of Tennessee |
| KTA | Blue Cross of California |
| KTB | Wellmark BCBS |
| KTC | Highmark BCBS of Pennsylvania |
| KTD | BCBS of Western New York |
| KTE | BCBS of Western New York |
| KTF | Blue Shield of California |
| KTG | Anthem BCBS of Wisconsin |
| KTH | Blue Cross Blue Shield of Illinois |
| KTI | Blue Shield of California |
| KTJ | Blue Cross Blue Shield of Illinois |
| KTK | Blue Cross Blue Shield of Nebraska |
| KTL | Wellmark BCBS |
| KTM | CareFirst BCBS |
| KTN | Premera Blue Cross |
| KTO | Blue Cross Blue Shield of Arizona |
| KTP | Blue Shield of California |
| KTQ | Premera Blue Cross |
| KTR | Anthem BCBS of Virginia |
| KTS | Anthem BCBS of Ohio |
| KTT | Anthem BCBS of Georgia |
| KTU | Blue Cross Blue Shield of Illinois |
| KTV | Blue Cross Blue Shield of Illinois |
| KTW | Anthem BCBS of Georgia |
| KTX | Anthem BCBS of Georgia |
| KTY | Blue Cross Blue Shield of Vermont |
| KTZ | Blue Cross Blue Shield of Texas |
| KUA | CareFirst BCBS |
| KUB | Blue Cross Blue Shield of Tennessee |
| KUC | Blue Cross Blue Shield of Illinois |
| KUD | Unassigned |
| KUE | Blue Shield of California |
| KUF | Wellmark BCBS |
| KUG | Horizon Blue Cross Blue Shield of New Jersey |
| KUH | Anthem BCBS of Virginia |
| KUI | Blue Cross Blue Shield of Michigan |
| KUJ | Anthem BCBS of Ohio |
| KUK | Horizon Blue Cross Blue Shield of New Jersey |
| KUL | Blue Cross Blue Shield of Illinois |
| KUM | Blue Cross Blue Shield of Arkansas |
| KUN | Regence Blue Cross Blue Shield of Oregon |
| KUO | Blue Cross Blue Shield of Michigan |
| KUP | Blue Cross Blue Shield of Rhode Island |
| KUQ | Blue Cross Blue Shield of Minnesota |
| KUR | Blue Cross Blue Shield of Illinois |
| KUS | Blue Cross Blue Shield of South Carolina |
| KUT | Blue Cross Blue Shield of South Carolina |
| KUU | Anthem BCBS of Ohio |
| KUV | Anthem BCBS of Nevada |
| KUW | Blue Cross Blue Shield of Illinois |
| KUX | Unassigned |
| KUY | Highmark BCBS of Pennsylvania |
| KUZ | Unassigned |
| KVA | Blue Cross Blue Shield of Illinois |
| KVB | Blue Cross Blue Shield of Alabama |
| KVC | Wellmark BCBS |
| KVD | Blue Cross Blue Shield of Alabama |
| KVE | Blue Cross Blue Shield of Illinois |
| KVF | Wellmark BCBS |
| KVG | Blue Cross Blue Shield of Minnesota |
| KVH | Capital Blue Cross |
| KVI | Blue Cross Blue Shield of Tennessee |
| KVJ | Blue Cross Blue Shield of Illinois |
| KVK | Blue Cross of California |
| KVL | Blue Cross Blue Shield of Kansas City |
| KVM | Wellmark BCBS |
| KVN | Blue Cross Blue Shield of Minnesota |
| KVO | Blue Cross Blue Shield of Minnesota |
| KVP | Blue Cross Blue Shield of Tennessee |
| KVQ | Wellmark BCBS |
| KVR | Empire Blue Cross Blue Shield |
| KVS | Premera Blue Cross |
| KVT | Highmark BCBS of Pennsylvania |
| KVU | Anthem BCBS of Georgia |
| KVV | CareFirst BCBS |
| KVW | Anthem BCBS of Wisconsin |
| KVX | Blue Cross Blue Shield of Massachusetts |
| KVY | Blue Cross of California |
| KVZ | Anthem BCBS of Ohio |
| KWA | Blue Cross Blue Shield of Michigan |
| KWB | Blue Cross Blue Shield of North Carolina |
| KWC | Blue Cross Blue Shield of Tennessee |
| KWD | Blue Cross of California |
| KWE | Blue Cross Blue Shield of Illinois |
| KWF | Blue Cross Blue Shield of Kansas City |
| KWG | Wellmark BCBS |
| KWH | Horizon Blue Cross Blue Shield of New Jersey |
| KWI | Blue Cross of California |
| KWJ | Blue Cross Blue Shield of Rhode Island |
| KWK | Wellmark BCBS |
| KWL | CareFirst BCBS |
| KWM | Anthem BCBS of Ohio |
| KWN | Blue Cross of California |
| KWO | Blue Cross Blue Shield of Michigan |
| KWP | Blue Cross Blue Shield of Massachusetts |
| KWQ | Capital Blue Cross |
| KWR | Blue Cross Blue Shield of Illinois |
| KWS | Blue Cross Blue Shield of Illinois |
| KWT | Blue Cross of California |
| KWU | Blue Cross of California |
| KWV | Regence Blue Shield of Washington |
| KWW | CareFirst BCBS |
| KWX | Regence Blue Shield of Washington |
| KWY | Blue Shield of Northeastern New York |
| KWZ | Blue Cross Blue Shield of Nebraska |
| KXA | BCBS of Western New York |
| KXB | Premera Blue Cross |
| KXC | Blue Cross Blue Shield of Illinois |
| KXD | BCBS of Western New York |
| KXE | Blue Cross Blue Shield of Illinois |
| KXF | Blue Shield of Northeastern New York |
| KXG | Blue Cross Blue Shield of Massachusetts |
| KXH | Blue Cross Blue Shield of Rhode Island |
| KXI | Blue Cross of California |
| KXJ | Blue Cross of California |
| KXK | Blue Cross Blue Shield of South Carolina |
| KXL | Anthem BCBS of Wisconsin |
| KXM | Premera Blue Cross |
| KXN | Blue Shield of California |
| KXO | Blue Cross Blue Shield of Michigan |
| KXP | Blue Cross Blue Shield of Minnesota |
| KXQ | Anthem BCBS of Missouri |
| KXR | Premera Blue Cross |
| KXS | Wellmark BCBS |
| KXT | Anthem BCBS of Ohio |
| KXU | Anthem BCBS of Virginia |
| KXV | Blue Cross Blue Shield of Minnesota |
| KXW | Blue Cross Blue Shield of Illinois |
| KXX | Wellmark BCBS |
| KXY | CareFirst BCBS |
| KXZ | Blue Cross Blue Shield of Michigan |
| KYA | Blue Cross Blue Shield of Michigan |
| KYB | Blue Cross Blue Shield of Illinois |
| KYC | Anthem BCBS of Ohio |
| KYD | Blue Cross Blue Shield of Michigan |
| KYE | Wellmark BCBS |
| KYF | Blue Cross Blue Shield of Illinois |
| KYG | Anthem BCBS of Ohio |
| KYH | Anthem BCBS of Ohio |
| KYI | Blue Cross Blue Shield of Alabama |
| KYJ | Anthem BCBS of Ohio |
| KYK | Blue Cross Blue Shield of Michigan |
| KYL | Anthem BCBS of Kentucky |
| KYM | Blue Cross Blue Shield of Michigan |
| KYN | Blue Cross Blue Shield of Michigan |
| KYO | Blue Cross Blue Shield of Michigan |
| KYP | Blue Cross Blue Shield of Michigan |
| KYQ | Unassigned |
| KYR | Blue Cross of California |
| KYS | Empire Blue Cross Blue Shield |
| KYT | Anthem BCBS of Kentucky |
| KYU | Anthem BCBS of Ohio |
| KYV | Blue Shield of California |
| KYW | Anthem BCBS of Ohio |
| KYX | Blue Cross Blue Shield of Alabama |
| KYY | Blue Cross Blue Shield of South Carolina |
| KYZ | CareFirst BCBS |
| KZA | Blue Cross Blue Shield of South Carolina |
| KZB | Anthem BCBS of Ohio |
| KZC | Blue Cross Blue Shield of Alabama |
| KZD | Blue Cross of California |
| KZE | Wellmark BCBS |
| KZF | BCBS of Western New York |
| KZG | Blue Cross Blue Shield of North Carolina |
| KZH | Blue Cross Blue Shield of Illinois |
| KZI | Anthem BCBS of Ohio |
| KZJ | Blue Cross of California |
| KZK | CareFirst BCBS |
| KZL | Anthem BCBS of Wisconsin |
| KZM | Blue Cross Blue Shield of Illinois |
| KZN | Blue Cross Blue Shield of Texas |
| KZO | Blue Cross Blue Shield of Michigan |
| KZP | Anthem BCBS of Virginia |
| KZQ | BCBS of Western New York |
| KZR | Horizon Blue Cross Blue Shield of New Jersey |
| KZS | Blue Cross Blue Shield of South Carolina |
| KZT | Blue Cross of California |
| KZU | Blue Cross of California |
| KZV | CareFirst BCBS |
| KZW | Blue Cross of California |
| KZX | Blue Cross Blue Shield of Illinois |
| KZY | Blue Cross Blue Shield of Michigan |
| KZZ | Anthem BCBS of Georgia |