| QAA | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| QAB | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QAC | - | Unallocated/Not Assigned |
| QAD | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QAE | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QAF | - | Unallocated/Not Assigned |
| QAG | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QAH | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| QAI | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QAJ | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QAK | Alabama | Blue-Cross Blue-Shield of Alabama |
| QAL | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QAM | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| QAN | California | Blue-Shield of California |
| QAO | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QAP | California | Anthem Blue-Cross |
| QAQ | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QAR | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QAS | - | Unallocated/Not Assigned |
| QAT | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QAU | Alabama | Blue-Cross Blue-Shield of Alabama |
| QAV | - | Unallocated/Not Assigned |
| QAW | Alabama | Blue-Cross Blue-Shield of Alabama |
| QAX | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QAY | Alabama | Blue-Cross Blue-Shield of Alabama |
| QAZ | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| QBA | Louisiana | Blue-Cross Blue-Shield of Louisiana |
| QBB | Louisiana | Blue-Cross Blue-Shield of Louisiana |
| QBC | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QBD | - | Unallocated/Not Assigned |
| QBE | Louisiana | Blue-Cross Blue-Shield of Louisiana |
| QBF | - | Unallocated/Not Assigned |
| QBG | Louisiana | Blue-Cross Blue-Shield of Louisiana |
| QBH | California | Anthem Blue-Cross |
| QBI | - | Unallocated/Not Assigned |
| QBJ | - | Unallocated/Not Assigned |
| QBK | - | Unallocated/Not Assigned |
| QBL | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| QBM | - | Unallocated/Not Assigned |
| QBN | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QBO | - | Unallocated/Not Assigned |
| QBP | New York | Empire Blue-Cross Blue-Shield of New York |
| QBQ | - | Unallocated/Not Assigned |
| QBR | New York | Empire Blue-Cross Blue-Shield of New York |
| QBS | Louisiana | Blue-Cross Blue-Shield of Louisiana |
| QBT | - | Unallocated/Not Assigned |
| QBU | - | Unallocated/Not Assigned |
| QBV | - | Unallocated/Not Assigned |
| QBW | - | Unallocated/Not Assigned |
| QBX | - | Unallocated/Not Assigned |
| QBY | - | Unallocated/Not Assigned |
| QBZ | - | Unallocated/Not Assigned |
| QCA | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QCB | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| QCC | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QCD | New York | Empire Blue-Cross Blue-Shield of New York |
| QCE | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QCF | California | Blue-Shield of California |
| QCG | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QCH | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QCI | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QCJ | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QCK | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QCL | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QCM | - | Unallocated/Not Assigned |
| QCN | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QCO | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QCP | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| QCQ | - | Unallocated/Not Assigned |
| QCR | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QCS | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| QCT | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| QCU | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| QCV | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| QCW | New York | Empire Blue-Cross Blue-Shield of New York |
| QCX | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QCY | California | Anthem Blue-Cross |
| QCZ | Nebraska | Blue-Cross Blue-Shield of Nebraska |
| QDA | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDB | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QDC | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDD | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDE | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDF | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDG | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QDH | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDI | - | Unallocated/Not Assigned |
| QDJ | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDK | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QDL | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QDM | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDN | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDO | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDP | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDQ | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDR | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDS | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDT | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QDU | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDV | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDW | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDX | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QDY | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QDZ | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QEA | - | Unallocated/Not Assigned |
| QEB | - | Unallocated/Not Assigned |
| QEC | - | Unallocated/Not Assigned |
| QED | California | Anthem Blue-Cross |
| QEE | California | Blue-Shield of California |
| QEF | - | Unallocated/Not Assigned |
| QEG | California | Anthem Blue-Cross |
| QEH | Alabama | Blue-Cross Blue-Shield of Alabama |
| QEI | - | Unallocated/Not Assigned |
| QEJ | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QEK | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QEL | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| QEM | - | Unallocated/Not Assigned |
| QEN | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| QEO | Michigan | Blue-Cross Blue-Shield of Michigan |
| QEP | Nevada | Anthem Blue-Cross Blue-Shield of Nevada |
| QEQ | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QER | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QES | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QET | - | Unallocated/Not Assigned |
| QEU | - | Unallocated/Not Assigned |
| QEV | - | Unallocated/Not Assigned |
| QEW | Nevada | Anthem Blue-Cross Blue-Shield of Nevada |
| QEX | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QEY | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QEZ | - | Unallocated/Not Assigned |
| QFA | - | Unallocated/Not Assigned |
| QFB | - | Unallocated/Not Assigned |
| QFC | Nebraska | Blue-Cross Blue-Shield of Nebraska |
| QFD | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| QFE | Global | Geo Blue Blue-Cross Blue-Shield |
| QFF | Global | Geo Blue Blue-Cross Blue-Shield |
| QFG | - | Unallocated/Not Assigned |
| QFH | Global | Geo Blue Blue-Cross Blue-Shield |
| QFI | - | Unallocated/Not Assigned |
| QFJ | Global | Geo Blue Blue-Cross Blue-Shield |
| QFK | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QFL | - | Unallocated/Not Assigned |
| QFM | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QFN | - | Unallocated/Not Assigned |
| QFO | - | Unallocated/Not Assigned |
| QFP | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| QFQ | - | Unallocated/Not Assigned |
| QFR | - | Unallocated/Not Assigned |
| QFS | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QFT | - | Unallocated/Not Assigned |
| QFU | California | Anthem Blue-Cross |
| QFV | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QFW | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QFX | California | Anthem Blue-Cross |
| QFY | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QFZ | - | Unallocated/Not Assigned |
| QGA | - | Unallocated/Not Assigned |
| QGB | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QGC | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QGD | California | Anthem Blue-Cross |
| QGE | Alabama | Blue-Cross Blue-Shield of Alabama |
| QGF | California | Anthem Blue-Cross |
| QGG | California | Anthem Blue-Cross |
| QGH | California | Anthem Blue-Cross |
| QGI | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QGJ | California | Anthem Blue-Cross |
| QGK | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QGL | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| QGM | Idaho | Blue-Cross of Idaho |
| QGN | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QGO | California | Anthem Blue-Cross |
| QGP | - | Unallocated/Not Assigned |
| QGQ | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QGR | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QGS | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QGT | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| QGU | California | Blue-Shield of California |
| QGV | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QGW | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QGX | Alabama | Blue-Cross Blue-Shield of Alabama |
| QGY | Michigan | Blue-Cross Blue-Shield of Michigan |
| QGZ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QHA | Global | Geo Blue Blue-Cross Blue-Shield |
| QHB | Global | Geo Blue Blue-Cross Blue-Shield |
| QHC | Global | Geo Blue Blue-Cross Blue-Shield |
| QHD | Global | Geo Blue Blue-Cross Blue-Shield |
| QHE | Global | Geo Blue Blue-Cross Blue-Shield |
| QHF | Global | Geo Blue Blue-Cross Blue-Shield |
| QHG | Global | Geo Blue Blue-Cross Blue-Shield |
| QHH | Global | Geo Blue Blue-Cross Blue-Shield |
| QHI | Global | Geo Blue Blue-Cross Blue-Shield |
| QHJ | Global | Geo Blue Blue-Cross Blue-Shield |
| QHK | Global | Geo Blue Blue-Cross Blue-Shield |
| QHL | Global | Geo Blue Blue-Cross Blue-Shield |
| QHM | Global | Geo Blue Blue-Cross Blue-Shield |
| QHN | Global | Geo Blue Blue-Cross Blue-Shield |
| QHO | Global | Geo Blue Blue-Cross Blue-Shield |
| QHP | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QHQ | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QHR | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| QHS | Global | Geo Blue Blue-Cross Blue-Shield |
| QHT | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QHU | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| QHV | New York (Northeastern) | Blue-Shield of Northeastern New York |
| QHW | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QHX | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QHY | - | Unallocated/Not Assigned |
| QHZ | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QIA | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QIB | California | Blue-Shield of California |
| QIC | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QID | Michigan | Blue-Cross Blue-Shield of Michigan |
| QIE | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QIF | Rhode Island | Blue-Cross Blue-Shield of Rhode Island |
| QIG | Alabama | Blue-Cross Blue-Shield of Alabama |
| QIH | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QII | Michigan | Blue-Cross Blue-Shield of Michigan |
| QIJ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QIK | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| QIL | Alabama | Blue-Cross Blue-Shield of Alabama |
| QIM | - | Unallocated/Not Assigned |
| QIN | California | Anthem Blue-Cross |
| QIO | Michigan | Blue-Cross Blue-Shield of Michigan |
| QIP | California | Anthem Blue-Cross |
| QIQ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QIR | Michigan | Blue-Cross Blue-Shield of Michigan |
| QIS | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| QIT | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QIU | Michigan | Blue-Cross Blue-Shield of Michigan |
| QIV | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QIW | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QIX | - | Unallocated/Not Assigned |
| QIY | Michigan | Blue-Cross Blue-Shield of Michigan |
| QIZ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QJA | Nevada | Anthem Blue-Cross Blue-Shield of Nevada |
| QJB | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QJC | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QJD | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QJE | Rhode Island | Blue-Cross Blue-Shield of Rhode Island |
| QJF | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| QJG | Michigan | Blue-Cross Blue-Shield of Michigan |
| QJH | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QJI | Michigan | Blue-Cross Blue-Shield of Michigan |
| QJJ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QJK | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QJL | Michigan | Blue-Cross Blue-Shield of Michigan |
| QJM | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QJN | Michigan | Blue-Cross Blue-Shield of Michigan |
| QJO | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QJP | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QJQ | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QJR | Michigan | Blue-Cross Blue-Shield of Michigan |
| QJS | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QJT | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QJU | Michigan | Blue-Cross Blue-Shield of Michigan |
| QJV | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QJW | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QJX | Michigan | Blue-Cross Blue-Shield of Michigan |
| QJY | Michigan | Blue-Cross Blue-Shield of Michigan |
| QJZ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QKA | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QKB | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QKC | New York | Empire Blue-Cross Blue-Shield of New York |
| QKD | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QKE | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QKF | Michigan | Blue-Cross Blue-Shield of Michigan |
| QKG | Michigan | Blue-Cross Blue-Shield of Michigan |
| QKH | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QKI | Michigan | Blue-Cross Blue-Shield of Michigan |
| QKJ | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| QKK | Michigan | Blue-Cross Blue-Shield of Michigan |
| QKL | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QKM | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QKN | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QKO | Michigan | Blue-Cross Blue-Shield of Michigan |
| QKP | California | Anthem Blue-Cross |
| QKQ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QKR | Michigan | Blue-Cross Blue-Shield of Michigan |
| QKS | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QKT | New York (Northeastern) | Blue-Shield of Northeastern New York |
| QKU | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| QKV | California | Anthem Blue-Cross |
| QKW | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| QKX | Michigan | Blue-Cross Blue-Shield of Michigan |
| QKY | Michigan | Blue-Cross Blue-Shield of Michigan |
| QKZ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QLA | New York | Empire Blue-Cross Blue-Shield of New York |
| QLB | California | Anthem Blue-Cross |
| QLC | Alabama | Blue-Cross Blue-Shield of Alabama |
| QLD | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QLE | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QLF | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QLG | Alabama | Blue-Cross Blue-Shield of Alabama |
| QLH | - | Unallocated/Not Assigned |
| QLI | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| QLJ | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| QLK | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| QLL | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| QLM | - | Unallocated/Not Assigned |
| QLN | Alabama | Blue-Cross Blue-Shield of Alabama |
| QLO | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| QLP | New York | Empire Blue-Cross Blue-Shield of New York |
| QLQ | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| QLR | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| QLS | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QLT | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QLU | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| QLV | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QLW | Rhode Island | Blue-Cross Blue-Shield of Rhode Island |
| QLX | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QLY | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QLZ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QMA | Illinois | Blue-Cross Blue-Shield of Illinois |
| QMB | Illinois | Blue-Cross Blue-Shield of Illinois |
| QMC | Illinois | Blue-Cross Blue-Shield of Illinois |
| QMD | Illinois | Blue-Cross Blue-Shield of Illinois |
| QME | Illinois | Blue-Cross Blue-Shield of Illinois |
| QMF | Illinois | Blue-Cross Blue-Shield of Illinois |
| QMG | Illinois | Blue-Cross Blue-Shield of Illinois |
| QMH | - | Unallocated/Not Assigned |
| QMI | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| QMJ | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| QMK | - | Unallocated/Not Assigned |
| QML | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| QMM | - | Unallocated/Not Assigned |
| QMN | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QMO | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QMP | - | Unallocated/Not Assigned |
| QMQ | Pennsylvania | Capital Blue-Cross of Pennsylvania |
| QMR | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QMS | California | Blue-Shield of California |
| QMT | - | Unallocated/Not Assigned |
| QMU | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QMV | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QMW | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QMX | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QMY | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QMZ | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QNA | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| QNB | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QNC | California | Anthem Blue-Cross |
| QND | - | Unallocated/Not Assigned |
| QNE | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| QNF | Alabama | Blue-Cross Blue-Shield of Alabama |
| QNG | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QNH | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QNI | Michigan | Blue-Cross Blue-Shield of Michigan |
| QNJ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QNK | Michigan | Blue-Cross Blue-Shield of Michigan |
| QNL | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QNM | - | Unallocated/Not Assigned |
| QNN | California | Blue-Shield of California |
| QNO | - | Unallocated/Not Assigned |
| QNP | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| QNQ | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QNR | New York | Empire Blue-Cross Blue-Shield of New York |
| QNS | - | Unallocated/Not Assigned |
| QNT | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| QNU | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| QNV | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QNW | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QNX | Michigan | Blue-Cross Blue-Shield of Michigan |
| QNY | Michigan | Blue-Cross Blue-Shield of Michigan |
| QNZ | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QOA | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| QOB | California | Anthem Blue-Cross |
| QOC | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QOD | Michigan | Blue-Cross Blue-Shield of Michigan |
| QOE | Michigan | Blue-Cross Blue-Shield of Michigan |
| QOF | Michigan | Blue-Cross Blue-Shield of Michigan |
| QOG | Michigan | Blue-Cross Blue-Shield of Michigan |
| QOH | California | Anthem Blue-Cross |
| QOI | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| QOJ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QOK | Michigan | Blue-Cross Blue-Shield of Michigan |
| QOL | Michigan | Blue-Cross Blue-Shield of Michigan |
| QOM | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QON | Michigan | Blue-Cross Blue-Shield of Michigan |
| QOO | Michigan | Blue-Cross Blue-Shield of Michigan |
| QOP | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QOQ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QOR | Michigan | Blue-Cross Blue-Shield of Michigan |
| QOS | - | Unallocated/Not Assigned |
| QOT | Michigan | Blue-Cross Blue-Shield of Michigan |
| QOU | Michigan | Blue-Cross Blue-Shield of Michigan |
| QOV | - | Unallocated/Not Assigned |
| QOW | Michigan | Blue-Cross Blue-Shield of Michigan |
| QOX | - | Unallocated/Not Assigned |
| QOY | Michigan | Blue-Cross Blue-Shield of Michigan |
| QOZ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QPA | - | Unallocated/Not Assigned |
| QPB | - | Unallocated/Not Assigned |
| QPC | - | Unallocated/Not Assigned |
| QPD | - | Unallocated/Not Assigned |
| QPE | - | Unallocated/Not Assigned |
| QPF | - | Unallocated/Not Assigned |
| QPG | - | Unallocated/Not Assigned |
| QPH | - | Unallocated/Not Assigned |
| QPI | - | Unallocated/Not Assigned |
| QPJ | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QPK | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QPL | - | Unallocated/Not Assigned |
| QPM | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QPN | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QPO | Idaho | Blue-Cross of Idaho |
| QPP | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QPQ | California | Blue-Shield of California |
| QPR | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| QPS | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| QPT | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QPU | - | Unallocated/Not Assigned |
| QPV | New York | Empire Blue-Cross Blue-Shield of New York |
| QPW | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QPX | California | Anthem Blue-Cross |
| QPY | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QPZ | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QQA | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QQB | Nevada | Anthem Blue-Cross Blue-Shield of Nevada |
| QQC | California | Blue-Shield of California |
| QQD | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QQE | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QQF | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QQG | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| QQH | - | Unallocated/Not Assigned |
| QQI | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| QQJ | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QQK | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| QQL | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| QQM | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QQN | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| QQO | Michigan | Blue-Cross Blue-Shield of Michigan |
| QQP | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QQQ | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| QQR | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QQS | - | Unallocated/Not Assigned |
| QQT | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QQU | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| QQV | California | Anthem Blue-Cross |
| QQW | California | Anthem Blue-Cross |
| QQX | Michigan | Blue-Cross Blue-Shield of Michigan |
| QQY | Michigan | Blue-Cross Blue-Shield of Michigan |
| QQZ | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QRA | - | Unallocated/Not Assigned |
| QRB | - | Unallocated/Not Assigned |
| QRC | - | Unallocated/Not Assigned |
| QRD | - | Unallocated/Not Assigned |
| QRE | - | Unallocated/Not Assigned |
| QRF | - | Unallocated/Not Assigned |
| QRG | California | Anthem Blue-Cross |
| QRH | California | Anthem Blue-Cross |
| QRI | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| QRJ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QRK | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| QRL | - | Unallocated/Not Assigned |
| QRM | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QRN | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QRO | Michigan | Blue-Cross Blue-Shield of Michigan |
| QRP | - | Unallocated/Not Assigned |
| QRQ | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QRR | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QRS | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QRT | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QRU | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QRV | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QRW | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QRX | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QRY | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QRZ | New York (Northeastern) | Blue-Shield of Northeastern New York |
| QSA | - | Unallocated/Not Assigned |
| QSB | - | Unallocated/Not Assigned |
| QSC | - | Unallocated/Not Assigned |
| QSD | - | Unallocated/Not Assigned |
| QSE | - | Unallocated/Not Assigned |
| QSF | - | Unallocated/Not Assigned |
| QSG | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QSH | New York | Empire Blue-Cross Blue-Shield of New York |
| QSI | Nevada | Anthem Blue-Cross Blue-Shield of Nevada |
| QSJ | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QSK | - | Unallocated/Not Assigned |
| QSL | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| QSM | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QSN | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QSO | - | Unallocated/Not Assigned |
| QSP | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QSQ | - | Unallocated/Not Assigned |
| QSR | - | Unallocated/Not Assigned |
| QSS | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QST | - | Unallocated/Not Assigned |
| QSU | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QSV | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| QSW | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QSX | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| QSY | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| QSZ | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QTA | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QTB | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QTC | California | Anthem Blue-Cross |
| QTD | Alabama | Blue-Cross Blue-Shield of Alabama |
| QTE | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QTF | - | Unallocated/Not Assigned |
| QTG | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QTH | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| QTI | - | Unallocated/Not Assigned |
| QTJ | Rhode Island | Blue-Cross Blue-Shield of Rhode Island |
| QTK | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| QTL | California | Anthem Blue-Cross |
| QTM | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QTN | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QTO | Rhode Island | Blue-Cross Blue-Shield of Rhode Island |
| QTP | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QTQ | California | Anthem Blue-Cross |
| QTR | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QTS | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| QTT | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QTU | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| QTV | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| QTW | - | Unallocated/Not Assigned |
| QTX | Delaware | Highmark Blue-Cross Blue-Shield of Delaware |
| QTY | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QTZ | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QUA | California | Anthem Blue-Cross |
| QUB | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| QUC | California | Anthem Blue-Cross |
| QUD | Rhode Island | Blue-Cross Blue-Shield of Rhode Island |
| QUE | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| QUF | California | Anthem Blue-Cross |
| QUG | Michigan | Blue-Cross Blue-Shield of Michigan |
| QUH | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QUI | Michigan | Blue-Cross Blue-Shield of Michigan |
| QUJ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QUK | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QUL | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QUM | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QUN | Rhode Island | Blue-Cross Blue-Shield of Rhode Island |
| QUO | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QUP | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QUQ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QUR | Michigan | Blue-Cross Blue-Shield of Michigan |
| QUS | - | Unallocated/Not Assigned |
| QUT | California | Blue-Shield of California |
| QUU | Michigan | Blue-Cross Blue-Shield of Michigan |
| QUV | Michigan | Blue-Cross Blue-Shield of Michigan |
| QUW | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QUX | Michigan | Blue-Cross Blue-Shield of Michigan |
| QUY | Michigan | Blue-Cross Blue-Shield of Michigan |
| QUZ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QVA | - | Unallocated/Not Assigned |
| QVB | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QVC | - | Unallocated/Not Assigned |
| QVD | Michigan | Blue-Cross Blue-Shield of Michigan |
| QVE | - | Unallocated/Not Assigned |
| QVF | - | Unallocated/Not Assigned |
| QVG | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QVH | - | Unallocated/Not Assigned |
| QVI | Michigan | Blue-Cross Blue-Shield of Michigan |
| QVJ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QVK | Michigan | Blue-Cross Blue-Shield of Michigan |
| QVL | Alabama | Blue-Cross Blue-Shield of Alabama |
| QVM | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QVN | - | Unallocated/Not Assigned |
| QVO | Michigan | Blue-Cross Blue-Shield of Michigan |
| QVP | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QVQ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QVR | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| QVS | Nevada | Anthem Blue-Cross Blue-Shield of Nevada |
| QVT | California | Anthem Blue-Cross |
| QVU | Michigan | Blue-Cross Blue-Shield of Michigan |
| QVV | Michigan | Blue-Cross Blue-Shield of Michigan |
| QVW | Michigan | Blue-Cross Blue-Shield of Michigan |
| QVX | Michigan | Blue-Cross Blue-Shield of Michigan |
| QVY | Michigan | Blue-Cross Blue-Shield of Michigan |
| QVZ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QWA | California | Anthem Blue-Cross |
| QWB | California | Anthem Blue-Cross |
| QWC | California | Anthem Blue-Cross |
| QWD | California | Anthem Blue-Cross |
| QWE | California | Anthem Blue-Cross |
| QWF | California | Anthem Blue-Cross |
| QWG | California | Anthem Blue-Cross |
| QWH | California | Anthem Blue-Cross |
| QWI | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| QWJ | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QWK | Michigan | Blue-Cross Blue-Shield of Michigan |
| QWL | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QWM | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| QWN | California | Anthem Blue-Cross |
| QWO | Michigan | Blue-Cross Blue-Shield of Michigan |
| QWP | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QWQ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QWR | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QWS | California | Anthem Blue-Cross |
| QWT | - | Unallocated/Not Assigned |
| QWU | - | Unallocated/Not Assigned |
| QWV | - | Unallocated/Not Assigned |
| QWW | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QWX | Maine | Anthem Blue-Cross Blue-Shield of Maine |
| QWY | Wyoming | Blue-Cross Blue-Shield of Wyoming |
| QWZ | - | Unallocated/Not Assigned |
| QXA | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXB | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXC | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXD | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXE | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXF | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXG | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXH | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXI | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXJ | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| QXK | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXL | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXM | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXN | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXO | Michigan | Blue-Cross Blue-Shield of Michigan |
| QXP | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXQ | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QXR | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXS | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXT | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXU | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| QXV | - | Unallocated/Not Assigned |
| QXW | - | Unallocated/Not Assigned |
| QXX | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| QXY | Michigan | Blue-Cross Blue-Shield of Michigan |
| QXZ | - | Unallocated/Not Assigned |
| QYA | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QYB | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QYC | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QYD | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QYE | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QYF | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QYG | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QYH | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| QYI | Michigan | Blue-Cross Blue-Shield of Michigan |
| QYJ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QYK | Michigan | Blue-Cross Blue-Shield of Michigan |
| QYL | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QYM | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QYN | Michigan | Blue-Cross Blue-Shield of Michigan |
| QYO | Michigan | Blue-Cross Blue-Shield of Michigan |
| QYP | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| QYQ | Michigan | Blue-Cross Blue-Shield of Michigan |
| QYR | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QYS | Nevada | Anthem Blue-Cross Blue-Shield of Nevada |
| QYT | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| QYU | Michigan | Blue-Cross Blue-Shield of Michigan |
| QYV | Michigan | Blue-Cross Blue-Shield of Michigan |
| QYW | Michigan | Blue-Cross Blue-Shield of Michigan |
| QYX | - | Unallocated/Not Assigned |
| QYY | Michigan | Blue-Cross Blue-Shield of Michigan |
| QYZ | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QZA | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QZB | - | Unallocated/Not Assigned |
| QZC | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QZD | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| QZE | - | Unallocated/Not Assigned |
| QZF | - | Unallocated/Not Assigned |
| QZG | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QZH | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| QZI | Michigan | Blue-Cross Blue-Shield of Michigan |
| QZJ | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QZK | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QZL | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| QZM | New York | Empire Blue-Cross Blue-Shield of New York |
| QZN | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| QZO | - | Unallocated/Not Assigned |
| QZP | New York (Northeastern) | Blue-Shield of Northeastern New York |
| QZQ | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QZR | Michigan | Blue-Cross Blue-Shield of Michigan |
| QZS | Nevada | Anthem Blue-Cross Blue-Shield of Nevada |
| QZT | California | Anthem Blue-Cross |
| QZU | - | Unallocated/Not Assigned |
| QZV | Michigan | Blue-Cross Blue-Shield of Michigan |
| QZW | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| QZX | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| QZY | - | Unallocated/Not Assigned |
| QZZ | Michigan | Blue-Cross Blue-Shield of Michigan |