Today you will find The BCBS Alpha Prefix List from TAA to TZZ. The alpha prefix is very important to the identification number. The prefix acts as a key element in confirming the members’ eligibility and coverage information. Prefixes are also used to identify and correctly route claims to the appropriate Blue Cross Blue Shield Plan for processing. Most members with coverage through a Blue Cross Blue Shield Plan are assigned a Three Letter alpha prefix as a part of their unique identification number. The alpha prefix can easily be identified as it is the first three characters.
| BCBS Prefix | State Lookup | BCBS Company |
|---|---|---|
| TAA | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| TAB | California | Anthem Blue-Cross |
| TAC | California | Blue-Shield of California |
| TAD | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut |
| TAE | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| TAF | Illinois | Blue-Cross Blue-Shield of Illinois |
| TAG | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TAH | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| TAI | California | Anthem Blue-Cross |
| TAJ | Illinois | Blue-Cross Blue-Shield of Illinois |
| TAK | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TAL | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TAM | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| TAN | – | Unallocated/Not Assigned |
| TAO | – | Unallocated/Not Assigned |
| TAP | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| TAQ | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| TAR | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TAS | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| TAT | – | Unallocated/Not Assigned |
| TAU | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TAV | Florida | Florida-Blue |
| TAW | New Hampshire | Anthem Blue-Cross Blue-Shield of New Hampshire |
| TAX | – | Unallocated/Not Assigned |
| TAY | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| TAZ | – | Unallocated/Not Assigned |
| TBA | Michigan | Blue-Cross Blue-Shield of Michigan |
| TBB | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| TBC | Texas | Blue-Cross Blue-Shield of Texas |
| TBD | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| TBE | Illinois | Blue-Cross Blue-Shield of Illinois |
| TBF | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| TBG | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TBH | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| TBI | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| TBJ | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TBK | Illinois | Blue-Cross Blue-Shield of Illinois |
| TBL | – | Unallocated/Not Assigned |
| TBM | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| TBN | – | Unallocated/Not Assigned |
| TBO | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| TBP | Michigan | Blue-Cross Blue-Shield of Michigan |
| TBQ | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| TBR | Michigan | Blue-Cross Blue-Shield of Michigan |
| TBS | Kansas City | Blue-Cross Blue-Shield of Kansas City |
| TBT | California | Anthem Blue-Cross |
| TBU | – | Unallocated/Not Assigned |
| TBV | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TBW | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| TBX | Michigan | Blue-Cross Blue-Shield of Michigan |
| TBY | Florida | Florida-Blue |
| TBZ | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TCA | Alabama | Blue-Cross Blue-Shield of Alabama |
| TCB | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TCC | Illinois | Blue-Cross Blue-Shield of Illinois |
| TCD | – | Unallocated/Not Assigned |
| TCE | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TCF | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TCG | Texas | Blue-Cross Blue-Shield of Texas |
| TCH | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TCI | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TCJ | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TCK | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TCL | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| TCM | Michigan | Blue-Cross Blue-Shield of Michigan |
| TCN | – | Unallocated/Not Assigned |
| TCO | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| TCP | Texas | Blue-Cross Blue-Shield of Texas |
| TCQ | California | Blue-Shield of California |
| TCR | Texas | Blue-Cross Blue-Shield of Texas |
| TCS | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| TCT | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TCU | – | Unallocated/Not Assigned |
| TCV | Florida | Florida-Blue |
| TCW | – | Unallocated/Not Assigned |
| TCX | California | Blue-Shield of California |
| TCY | – | Unallocated/Not Assigned |
| TCZ | – | Unallocated/Not Assigned |
| TDA | Illinois | Blue-Cross Blue-Shield of Illinois |
| TDB | Idaho | Blue-Cross of Idaho |
| TDC | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| TDD | – | Unallocated/Not Assigned |
| TDE | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TDF | – | Unallocated/Not Assigned |
| TDG | Nevada | Anthem Blue-Cross Blue-Shield of Nevada |
| TDH | – | Unallocated/Not Assigned |
| TDI | California | Blue-Shield of California |
| TDJ | Michigan | Blue-Cross Blue-Shield of Michigan |
| TDK | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| TDL | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| TDM | – | Credence Blue-Cross Blue-Shield |
| TDN | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TDO | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| TDP | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| TDQ | Michigan | Blue-Cross Blue-Shield of Michigan |
| TDR | – | Unallocated/Not Assigned |
| TDS | – | Unallocated/Not Assigned |
| TDT | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| TDU | – | Unallocated/Not Assigned |
| TDV | Michigan | Blue-Cross Blue-Shield of Michigan |
| TDW | – | Unallocated/Not Assigned |
| TDX | California | Blue-Shield of California |
| TDY | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| TDZ | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| TEA BCBS Prefix | Illinois | Blue-Cross Blue-Shield of Illinois |
| TEB | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TEC | Texas | Blue-Cross Blue-Shield of Texas |
| TED | – | Unallocated/Not Assigned |
| TEE | – | Unallocated/Not Assigned |
| TEF | California | Blue-Shield of California |
| TEG | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| TEH | California | Blue-Shield of California |
| TEI | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TEJ | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| TEK | Illinois | Blue-Cross Blue-Shield of Illinois |
| TEL | Alabama | Blue-Cross Blue-Shield of Alabama |
| TEM | – | Unallocated/Not Assigned |
| TEN | – | Unallocated/Not Assigned |
| TEO | – | Unallocated/Not Assigned |
| TEP | Illinois | Blue-Cross Blue-Shield of Illinois |
| TEQ | Alabama | Blue-Cross Blue-Shield of Alabama |
| TER | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| TES | California | Blue-Shield of California |
| TET | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| TEU | – | Unallocated/Not Assigned |
| TEV | Michigan | Blue-Cross Blue-Shield of Michigan |
| TEW | Illinois | Blue-Cross Blue-Shield of Illinois |
| TEX | Texas | Blue-Cross Blue-Shield of Texas |
| TEY | – | Unallocated/Not Assigned |
| TEZ | – | Unallocated/Not Assigned |
| TFA | – | Unallocated/Not Assigned |
| TFB | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TFC | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TFD | Illinois | Blue-Cross Blue-Shield of Illinois |
| TFE | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| TFF | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TFG | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| TFH | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| TFI | Idaho | Blue-Cross of Idaho |
| TFJ | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut |
| TFK | – | Unallocated/Not Assigned |
| TFL | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TFM | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TFN | – | Unallocated/Not Assigned |
| TFO | – | Unallocated/Not Assigned |
| TFP | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| TFQ | – | Unallocated/Not Assigned |
| TFR | Alabama | Blue-Cross Blue-Shield of Alabama |
| TFS | – | Unallocated/Not Assigned |
| TFT | – | Unallocated/Not Assigned |
| TFU | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| TFV | – | Unallocated/Not Assigned |
| TFW | – | Unallocated/Not Assigned |
| TFX | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| TFY | Illinois | Blue-Cross Blue-Shield of Illinois |
| TFZ | Illinois | Blue-Cross Blue-Shield of Illinois |
| TGA | New York | Empire Blue-Cross Blue-Shield of New York |
| TGB | Texas | Blue-Cross Blue-Shield of Texas |
| TGC | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TGD | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| TGE | New York | Empire Blue-Cross Blue-Shield of New York |
| TGF | Texas | Blue-Cross Blue-Shield of Texas |
| TGG | – | Unallocated/Not Assigned |
| TGH | Illinois | Blue-Cross Blue-Shield of Illinois |
| TGI | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| TGJ | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TGK | – | Unallocated/Not Assigned |
| TGL | Arizona | Blue-Cross Blue-Shield of Arizona |
| TGM | Florida | Florida Explore-My-Plan |
| TGN | Michigan | Blue-Cross Blue-Shield of Michigan |
| TGO | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TGP | – | Unallocated/Not Assigned |
| TGQ | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| TGR | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| TGS | New York | Empire Blue-Cross Blue-Shield of New York |
| TGT | – | Unallocated/Not Assigned |
| TGU | – | Unallocated/Not Assigned |
| TGV | – | Unallocated/Not Assigned |
| TGW | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TGX BCBS Prefix | California | Blue-Shield of California |
| TGY | – | Unallocated/Not Assigned |
| TGZ | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| THA | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| THB | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| THC | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| THD | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| THE | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| THF | Texas | Blue-Cross Blue-Shield of Texas |
| THG | Alabama | Blue-Cross Blue-Shield of Alabama |
| THH | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| THI | – | Unallocated/Not Assigned |
| THJ | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| THK | – | Unallocated/Not Assigned |
| THL | – | Unallocated/Not Assigned |
| THM | Florida | Florida-Blue |
| THN | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| THO | – | Unallocated/Not Assigned |
| THP | – | Unallocated/Not Assigned |
| THQ | Florida | Florida-Blue |
| THR | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| THS | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| THT | Florida | Florida-Blue |
| THU | California | Anthem Blue-Cross |
| THV | Alabama | Blue-Cross Blue-Shield of Alabama |
| THW | California | Blue-Shield of California |
| THX | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| THY | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| THZ | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| TIA | – | Unallocated/Not Assigned |
| TIB | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| TIC | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| TID | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| TIE | Michigan | Blue-Cross Blue-Shield of Michigan |
| TIF | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TIG | Nebraska | Blue-Cross Blue-Shield of Nebraska |
| TIH | – | Unallocated/Not Assigned |
| TII | – | Unallocated/Not Assigned |
| TIJ | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| TIK | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| TIL | – | Unallocated/Not Assigned |
| TIM | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TIN | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| TIO | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TIP | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| TIQ | – | Unallocated/Not Assigned |
| TIR | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| TIS | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| TIT | – | Unallocated/Not Assigned |
| TIU | Michigan | Blue-Cross Blue-Shield of Michigan |
| TIV | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TIW | Illinois | Blue-Cross Blue-Shield of Illinois |
| TIX | California | Blue-Shield of California |
| TIY BCBS Prefix | Michigan | Blue-Cross Blue-Shield of Michigan |
| TIZ | California | Blue-Shield of California |
| TJA | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| TJB | Texas | Blue-Cross Blue-Shield of Texas |
| TJC | – | Unallocated/Not Assigned |
| TJD | Michigan | Blue-Cross Blue-Shield of Michigan |
| TJE | – | Unallocated/Not Assigned |
| TJF | Texas | Blue-Cross Blue-Shield of Texas |
| TJG | – | Unallocated/Not Assigned |
| TJH | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TJI | – | Unallocated/Not Assigned |
| TJJ | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TJK | Texas | Blue-Cross Blue-Shield of Texas |
| TJL | – | Unallocated/Not Assigned |
| TJM | – | Unallocated/Not Assigned |
| TJN | Alabama | Blue-Cross Blue-Shield of Alabama |
| TJO | – | Unallocated/Not Assigned |
| TJP | Michigan | Blue-Cross Blue-Shield of Michigan |
| TJQ | California | Blue-Shield of California |
| TJR | Nebraska | Blue-Cross Blue-Shield of Nebraska |
| TJS | California | Anthem Blue-Cross |
| TJT | – | Unallocated/Not Assigned |
| TJU | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TJV BCBS Prefix | California | Blue-Shield of California |
| TJW | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TJX | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TJY | Texas | Blue-Cross Blue-Shield of Texas |
| TJZ | Illinois | Blue-Cross Blue-Shield of Illinois |
| TKA | Michigan | Blue-Cross Blue-Shield of Michigan |
| TKB | Mississippi | Blue-Cross Blue-Shield of Mississippi |
| TKC | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TKD | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| TKE | Illinois | Blue-Cross Blue-Shield of Illinois |
| TKF | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TKG | Illinois | Blue-Cross Blue-Shield of Illinois |
| TKH | Illinois | Blue-Cross Blue-Shield of Illinois |
| TKI | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TKJ | – | Unallocated/Not Assigned |
| TKK | Illinois | Blue-Cross Blue-Shield of Illinois |
| TKL | Texas | Blue-Cross Blue-Shield of Texas |
| TKM | – | Unallocated/Not Assigned |
| TKN | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TKO | Rhode Island | Blue-Cross Blue-Shield of Rhode Island |
| TKP | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TKQ | – | Unallocated/Not Assigned |
| TKR | – | Unallocated/Not Assigned |
| TKS | – | Unallocated/Not Assigned |
| TKT | Texas | Blue-Cross Blue-Shield of Texas |
| TKU | – | Unallocated/Not Assigned |
| TKV | – | Unallocated/Not Assigned |
| TKW | Michigan | Blue-Cross Blue-Shield of Michigan |
| TKX | Texas | Blue-Cross Blue-Shield of Texas |
| TKY | Michigan | Blue-Cross Blue-Shield of Michigan |
| TKZ | Michigan | Blue-Cross Blue-Shield of Michigan |
| TLA | California | Blue-Shield of California |
| TLB | – | Unallocated/Not Assigned |
| TLC | – | Unallocated/Not Assigned |
| TLD | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TLE | Illinois | Blue-Cross Blue-Shield of Illinois |
| TLF | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| TLG | – | Unallocated/Not Assigned |
| TLH | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TLI | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TLJ | Alabama | Blue-Cross Blue-Shield of Alabama |
| TLK | Michigan | Blue-Cross Blue-Shield of Michigan |
| TLL | California | Anthem Blue-Cross |
| TLM | California | Blue-Shield of California |
| TLN | Illinois | Blue-Cross Blue-Shield of Illinois |
| TLO | Illinois | Blue-Cross Blue-Shield of Illinois |
| TLP | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut |
| TLQ | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TLR | Illinois | Blue-Cross Blue-Shield of Illinois |
| TLS | – | Unallocated/Not Assigned |
| TLT | Illinois | Blue-Cross Blue-Shield of Illinois |
| TLU | Illinois | Blue-Cross Blue-Shield of Illinois |
| TLV | Rhode Island | Blue-Cross Blue-Shield of Rhode Island |
| TLW | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| TLX | Illinois | Blue-Cross Blue-Shield of Illinois |
| TLY | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| TLZ | – | Unallocated/Not Assigned |
| TMA | California | Blue-Shield of California |
| TMB | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| TMC | Louisiana | Blue-Cross Blue-Shield of Louisiana |
| TMD | Texas | Blue-Cross Blue-Shield of Texas |
| TME | Idaho | Blue-Cross of Idaho |
| TMF | – | Unallocated/Not Assigned |
| TMG | Alabama | Blue-Cross Blue-Shield of Alabama |
| TMH | Michigan | Blue-Cross Blue-Shield of Michigan |
| TMI | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TMJ | Illinois | Blue-Cross Blue-Shield of Illinois |
| TMK | Texas | Blue-Cross Blue-Shield of Texas |
| TML | Illinois | Blue-Cross Blue-Shield of Illinois |
| TMM | Texas | Blue-Cross Blue-Shield of Texas |
| TMN | California | Anthem Blue-Cross |
| TMO | North Dakota | Blue-Cross Blue-Shield of North Dakota |
| TMP | Alaska | Premera Blue-Cross of Alaska |
| TMQ | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| TMR | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| TMS | Illinois | Blue-Cross Blue-Shield of Illinois |
| TMT | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| TMU | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TMV | Illinois | Blue-Cross Blue-Shield of Illinois |
| TMW | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| TMX | Alabama | Blue-Cross Blue-Shield of Alabama |
| TMY | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TMZ | Arizona | Blue-Cross Blue-Shield of Arizona |
| TNA | South Carolina | Blue-Cross Blue-Shield of South Carolina |
| TNB | – | Unallocated/Not Assigned |
| TNC | – | Unallocated/Not Assigned |
| TND | – | Unallocated/Not Assigned |
| TNE | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TNF | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TNG | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TNH | – | Unallocated/Not Assigned |
| TNI | Michigan | Blue-Cross Blue-Shield of Michigan |
| TNJ | – | Unallocated/Not Assigned |
| TNK | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| TNL | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TNM | – | Unallocated/Not Assigned |
| TNN | Arkansas | Arkansas Blue-Cross Blue-Shield |
| TNO | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| TNP | – | Unallocated/Not Assigned |
| TNQ | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TNR | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TNS | New York | Excellus Blue-Cross Blue-Shield of New York |
| TNT | – | Unallocated/Not Assigned |
| TNU | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| TNV | New York | Empire Blue-Cross Blue-Shield of New York |
| TNW | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TNX | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| TNY | New York | Excellus Blue-Cross Blue-Shield of New York |
| TNZ | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| TOA BCBS Prefix | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| TOB | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| TOC | Arkansas | Arkansas Blue-Cross Blue-Shield |
| TOD | Alabama | Blue-Cross Blue-Shield of Alabama |
| TOE | Kansas | Blue-Cross Blue-Shield of Kansas |
| TOF | – | Unallocated/Not Assigned |
| TOG | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TOH | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TOI | – | Unallocated/Not Assigned |
| TOJ | – | Unallocated/Not Assigned |
| TOK | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| TOL | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TOM | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TON | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| TOO | California | Blue-Shield of California |
| TOP | – | Unallocated/Not Assigned |
| TOQ | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TOR | – | Unallocated/Not Assigned |
| TOS | – | Unallocated/Not Assigned |
| TOT | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| TOU | Michigan | Blue-Cross Blue-Shield of Michigan |
| TOV | Michigan | Blue-Cross Blue-Shield of Michigan |
| TOW | – | Unallocated/Not Assigned |
| TOX | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TOY | Michigan | Blue-Cross Blue-Shield of Michigan |
| TOZ | – | Unallocated/Not Assigned |
| TPA | – | Unallocated/Not Assigned |
| TPB | Michigan | Blue-Cross Blue-Shield of Michigan |
| TPC | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TPD | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| TPE | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| TPF | California | Anthem Blue-Cross |
| TPG | Rhode Island | Blue-Cross Blue-Shield of Rhode Island |
| TPH | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TPI | Illinois | Blue-Cross Blue-Shield of Illinois |
| TPJ | – | Unallocated/Not Assigned |
| TPK | – | Unallocated/Not Assigned |
| TPL | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| TPM | Michigan | Blue-Cross Blue-Shield of Michigan |
| TPN | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TPO | – | Unallocated/Not Assigned |
| TPP | – | Unallocated/Not Assigned |
| TPQ | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TPR | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TPS | California | Anthem Blue-Cross |
| TPT | New York | Excellus Blue-Cross Blue-Shield of New York |
| TPU | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| TPV | Illinois | Blue-Cross Blue-Shield of Illinois |
| TPW | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TPX | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| TPY | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| TPZ | – | Unallocated/Not Assigned |
| TQA | Alaska | Premera Blue-Cross of Alaska |
| TQB | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TQC | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TQD | Michigan | Blue-Cross Blue-Shield of Michigan |
| TQE | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| TQF | Michigan | Blue-Cross Blue-Shield of Michigan |
| TQG | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| TQH | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TQI | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TQJ | – | Unallocated/Not Assigned |
| TQK | Michigan | Blue-Cross Blue-Shield of Michigan |
| TQL | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TQM | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TQN | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| TQO | North Dakota | Blue-Cross Blue-Shield of North Dakota |
| TQP | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TQQ | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TQR | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TQS | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TQT | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TQU | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TQV | – | Unallocated/Not Assigned |
| TQW | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TQX | – | Unallocated/Not Assigned |
| TQY | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TQZ | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TRA BCBS Prefix | Illinois | Blue-Cross Blue-Shield of Illinois |
| TRB | Illinois | Blue-Cross Blue-Shield of Illinois |
| TRC | Illinois | Blue-Cross Blue-Shield of Illinois |
| TRD | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| TRE | Arizona | Blue-Cross Blue-Shield of Arizona |
| TRF | Michigan | Blue-Cross Blue-Shield of Michigan |
| TRG | Alaska | Premera Blue-Cross of Alaska |
| TRH | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| TRI | Pennsylvania | Capital Blue-Cross of Pennsylvania |
| TRJ | California | Anthem Blue-Cross |
| TRK | Illinois | Blue-Cross Blue-Shield of Illinois |
| TRL | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TRM | California | Blue-Shield of California |
| TRN | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut |
| TRO | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| TRP | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TRQ | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| TRR | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TRS | Kansas City | Blue-Cross Blue-Shield of Kansas City |
| TRT | Alabama | Blue-Cross Blue-Shield of Alabama |
| TRU | Idaho | Blue-Cross of Idaho |
| TRV | Nebraska | Blue-Cross Blue-Shield of Nebraska |
| TRW | Illinois | Blue-Cross Blue-Shield of Illinois |
| TRX | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| TRY | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TRZ | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| TSA | Texas | Blue-Cross Blue-Shield of Texas |
| TSB | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TSC | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TSD | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TSE | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| TSF | Kansas City | Blue-Cross Blue-Shield of Kansas City |
| TSG | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TSH | Idaho | Blue-Cross of Idaho |
| TSI | Illinois | Blue-Cross Blue-Shield of Illinois |
| TSJ | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut |
| TSK | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| TSL | Nebraska | Blue-Cross Blue-Shield of Nebraska |
| TSM | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| TSN | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| TSO | – | Unallocated/Not Assigned |
| TSP | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TSQ | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TSR | – | Unallocated/Not Assigned |
| TSS | – | Unallocated/Not Assigned |
| TST | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| TSU | Alaska | Premera Blue-Cross of Alaska |
| TSV | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TSW | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| TSX | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TSY | – | Unallocated/Not Assigned |
| TSZ | – | Unallocated/Not Assigned |
| TTA | Idaho | Blue-Cross of Idaho |
| TTB | Texas | Blue-Cross Blue-Shield of Texas |
| TTC | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TTD | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TTE | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TTF | Texas | Blue-Cross Blue-Shield of Texas |
| TTG | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TTH | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| TTI | – | Unallocated/Not Assigned |
| TTJ | Florida | Florida-Blue |
| TTK | Arizona | Blue-Cross Blue-Shield of Arizona |
| TTL | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| TTM | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TTN | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TTO | – | Unallocated/Not Assigned |
| TTP | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| TTQ | – | Unallocated/Not Assigned |
| TTR | Michigan | Blue-Cross Blue-Shield of Michigan |
| TTS | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| TTT | – | Unallocated/Not Assigned |
| TTU | Mississippi | Blue-Cross Blue-Shield of Mississippi |
| TTV | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TTW | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| TTX | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TTY | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| TTZ | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TUA | Pennsylvania | Capital Blue-Cross of Pennsylvania |
| TUB | Illinois | Blue-Cross Blue-Shield of Illinois |
| TUC | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TUD | – | Unallocated/Not Assigned |
| TUE | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| TUF | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TUG | Kentucky | Anthem Blue-Cross Blue-Shield of Kentucky |
| TUH | – | Unallocated/Not Assigned |
| TUI | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TUJ | – | Unallocated/Not Assigned |
| TUK | Illinois | Blue-Cross Blue-Shield of Illinois |
| TUL | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TUM | – | Unallocated/Not Assigned |
| TUN | Alabama | Blue-Cross Blue-Shield of Alabama |
| TUO | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| TUP | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| TUQ | – | Unallocated/Not Assigned |
| TUR | New York | Empire Blue-Cross Blue-Shield of New York |
| TUS | – | Unallocated/Not Assigned |
| TUT | Illinois | Blue-Cross Blue-Shield of Illinois |
| TUU | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TUV | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TUW | – | Unallocated/Not Assigned |
| TUX | Illinois | Blue-Cross Blue-Shield of Illinois |
| TUY | Michigan | Blue-Cross Blue-Shield of Michigan |
| TUZ | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TVA | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| TVB | – | Unallocated/Not Assigned |
| TVC | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TVD | – | Unallocated/Not Assigned |
| TVE | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TVF | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TVG | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| TVH | – | Unallocated/Not Assigned |
| TVI | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| TVJ | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TVK | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| TVL | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| TVM | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| TVN | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| TVO | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| TVP | – | Unallocated/Not Assigned |
| TVQ | – | Unallocated/Not Assigned |
| TVR | – | Unallocated/Not Assigned |
| TVS | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| TVT | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TVU | Michigan | Blue-Cross Blue-Shield of Michigan |
| TVV | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TVW | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut |
| TVX | – | Unallocated/Not Assigned |
| TVY | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TVZ | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TWA | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| TWB | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| TWC | Illinois | Blue-Cross Blue-Shield of Illinois |
| TWD | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| TWE | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TWF | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TWG | North Carolina | Blue-Cross Blue-Shield of North Carolina |
| TWH | California | Blue-Shield of California |
| TWI | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TWJ | New York | Empire Blue-Cross Blue-Shield of New York |
| TWK | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TWL | Alabama | Blue-Cross Blue-Shield of Alabama |
| TWM | New York | Empire Blue-Cross Blue-Shield of New York |
| TWN | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| TWO | Pennsylvania | Independence Blue-Cross of Philadelphia and Southeastern Pennsylvania |
| TWP | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TWQ | New York | Empire Blue-Cross Blue-Shield of New York |
| TWR | California | Anthem Blue-Cross |
| TWS | – | Unallocated/Not Assigned |
| TWT | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| TWU | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TWV | Illinois | Blue-Cross Blue-Shield of Illinois |
| TWW | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TWX | Texas | Blue-Cross Blue-Shield of Texas |
| TWY | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| TWZ | – | Unallocated/Not Assigned |
| TXA | Illinois | Blue-Cross Blue-Shield of Illinois |
| TXB | – | Unallocated/Not Assigned |
| TXC | Alabama | Blue-Cross Blue-Shield of Alabama |
| TXD | Texas | Blue-Cross Blue-Shield of Texas |
| TXE | – | Unallocated/Not Assigned |
| TXF | – | Unallocated/Not Assigned |
| TXG | – | Unallocated/Not Assigned |
| TXH | Maine | Anthem Blue-Cross Blue-Shield of Maine |
| TXI | – | Unallocated/Not Assigned |
| TXJ | Nevada | Anthem Blue-Cross Blue-Shield of Nevada |
| TXK | – | Unallocated/Not Assigned |
| TXL | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| TXM | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TXN | Michigan | Blue-Cross Blue-Shield of Michigan |
| TXO | – | Unallocated/Not Assigned |
| TXP | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| TXQ | – | Unallocated/Not Assigned |
| TXR | Texas | Blue-Cross Blue-Shield of Texas |
| TXS | Texas | Blue-Cross Blue-Shield of Texas |
| TXT | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TXU | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| TXV | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| TXW | Texas | Blue-Cross Blue-Shield of Texas |
| TXX BCBS Prefix | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| TXY | – | Unallocated/Not Assigned |
| TXZ | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| TYA | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| TYB | California | Blue-Shield of California |
| TYC | California | Anthem Blue-Cross |
| TYD | – | Unallocated/Not Assigned |
| TYE | – | Unallocated/Not Assigned |
| TYF | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TYG BCBS Prefix | Arkansas | Arkansas Blue-Cross Blue-Shield |
| TYH | – | Unallocated/Not Assigned |
| TYI | – | Unallocated/Not Assigned |
| TYJ | – | Unallocated/Not Assigned |
| TYK | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TYL | Texas | Blue-Cross Blue-Shield of Texas |
| TYM | Florida | Florida-Blue |
| TYN | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TYO | New York (Northeastern) | Blue-Shield of Northeastern New York |
| TYP | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield |
| TYQ | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| TYR | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| TYS | – | Unallocated/Not Assigned |
| TYT | Illinois | Blue-Cross Blue-Shield of Illinois |
| TYU | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| TYV | – | Unallocated/Not Assigned |
| TYW | Arizona | Blue-Cross Blue-Shield of Arizona |
| TYX | – | Unallocated/Not Assigned |
| TYY | Texas | Blue-Cross Blue-Shield of Texas |
| TYZ | Arkansas | Arkansas Blue-Cross Blue-Shield |
| TZA | Illinois | Blue-Cross Blue-Shield of Illinois |
| TZB | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| TZC | – | Unallocated/Not Assigned |
| TZD | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TZE | Illinois | Blue-Cross Blue-Shield of Illinois |
| TZF | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| TZG | – | Unallocated/Not Assigned |
| TZH | – | Unallocated/Not Assigned |
| TZI | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| TZJ | Illinois | Blue-Cross Blue-Shield of Illinois |
| TZK | – | Unallocated/Not Assigned |
| TZL | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| TZM | California | Anthem Blue-Cross |
| TZN | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TZO | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| TZP | – | Unallocated/Not Assigned |
| TZQ | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| TZR | – | Unallocated/Not Assigned |
| TZS | Alaska | Premera Blue-Cross Blue-Shield of Alaska |
| TZT | Arkansas | Arkansas Blue-Cross Blue-Shield |
| TZU | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| TZV | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| TZW | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| TZX | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| TZY | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| TZZ | – | Unallocated/Not Assigned |
Some identification cards may not include an alpha prefix, which may indicate that the claim filing instructions for these type policies are different. We suggest that you verify claim filing instructions during the time eligibility information is obtained. If not, please follow the instructions on the back of the member’s ID card or contact the plan directly. Member eligibility can be obtained at 1 (800) 676-BLUE (2583). Once connected, you will then simply provide the alpha prefix and the operator will then route you to the member’s plan. Helpful Tips Related to the Alpha Prefix:
- Do not omit or randomly select an alpha prefix.
- Do not substitute another Blue Cross Blue Shield Member’s prefix.
- Include the alpha prefix and all alpha characters preceding the alpha prefix on all correspondence and claims submitted to Blue Cross Blue Shield of Texas.
- The alpha prefix is always three letters followed by the member’s ID number which can be from 6 up to 14 characters total.
- If possible, make copies of the member’s ID card (front and back) for your records.
- We recommend that you obtain a copy of the ID card any time there has been a coverage or policy change. If there are no changes, we suggest that you obtain card copies annually.
About us
Billing Executive – a Medical Billing and Coding Knowledge Base for Physicians, Office staff, Medical Billers and Coders, including resources pertaining to HCPCS Codes, CPT Codes, ICD-10 billing codes, Modifiers, POS Codes, Revenue Codes, Billing Errors, Denials and Rejections.
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