BCBS Alpha Prefixes UAA to UZZ
| Prefix | Plan Name | |
|---|---|---|
| UAB | BCBS of Kansas City | |
| UAC | BCBS of Michigan | |
| UAE | Unassigned Prefix | |
| UAF | Carefirst BCBS of Maryland | |
| UAG | BCBS of Texas | |
| UAH | BCBS of Alabama | |
| UAI | Anthem Central Region (OH, IN, KY) | |
| UAJ | Unassigned Prefix | |
| UAK | Anthem | |
| UAL | Unassigned Prefix | |
| UAM | Highmark BCBS | |
| UAN | Horizon BCBS of New Jersey | |
| UAP | Anthem Blue Cross of California | |
| UAQ | Blue Shield of California | |
| UAR | Carefirst BCBS of Maryland | |
| UAS | Anthem Blue Cross of California | |
| UAT | Anthem Blue Cross of California | |
| UAU | Unassigned Prefix | |
| UAV | Anthem | |
| UAW | Unassigned Prefix | |
| UAX | Anthem Central Region (OH, IN, KY) | |
| UAY | Unassigned Prefix | |
| UAZ | Unassigned Prefix | |
| UBA | Anthem Central Region (OH, IN, KY) | |
| UBB | Blue Cross of Idaho | |
| UBC | Anthem Central Region (OH, IN, KY) | |
| UBD | Anthem | |
| UBE | Unassigned Prefix | |
| UBF | Independence Blue Cross | |
| UBH | Anthem Central Region (OH, IN, KY) | |
| UBI | BCBS of Minnesota | |
| UBJ | Unassigned Prefix | |
| UBK | Anthem Central Region (OH, IN, KY) | |
| UBL | Independence Blue Cross | |
| UBM | Unassigned Prefix | |
| UBN | BCBS of Minnesota | |
| UBP | Wellmark BCBS | |
| UBQ | BCBS of Minnesota | |
| UBR | BCBS of Minnesota | |
| UBS | Unassigned Prefix | |
| UBT | BCBS of Minnesota | |
| UBU | Anthem BCBS of Virginia | |
| UBV | Wellmark BCBS | |
| UBW | Anthem Central Region (OH, IN, KY) | |
| UBX | Anthem Blue Cross of California | |
| UBY | BCBS of Alabama | |
| UBZ | BCBS of Florida | |
| UCA | Anthem Central Region (OH, IN, KY) | |
| UCB | Premera Blue Cross | |
| UCC | BCBS of Michigan | |
| UCD | Anthem BCBS of Colorado | |
| UCE | BCBS of Texas | |
| UCF | Anthem BCBS of Colorado | |
| UCG | BCBS of Massachusetts | |
| UCH | BCBS of Kansas City | |
| UCI | BCBS of Michigan | |
| UCK | BCBS of Michigan | 866-324-9666 |
| UCL | Anthem BCBS of Colorado | |
| UCM | BCBS of Illinois | |
| UCN | BCBS of Alabama | |
| UCO | Carefirst Administrators | |
| UCP | Wellmark BCBS | |
| UCQ | Anthem | |
| UCR | Anthem | |
| UCS | Unassigned Prefix | |
| UCT | Anthem BCBS of Virginia | |
| UCU | Anthem | |
| UCV | Anthem BCBS of Colorado | |
| UCW | BCBS of Tennessee | |
| UCX | Anthem | |
| UCY | Blue Shield of California | |
| UCZ | BCBS of Western New York | |
| UDA | Premera Blue Cross | |
| UDB | Wellmark BCBS | |
| UDC | BCBS of Michigan | 866-324-9666 |
| UDD | BCBS of Michigan | |
| UDE | Anthem Central Region (OH, IN, KY) | |
| UDF | Anthem Central Region (OH, IN, KY) | |
| UDG | Unassigned Prefix | |
| UDH | Unassigned Prefix | |
| UDI | Unassigned Prefix | |
| UDJ | Unassigned Prefix | |
| UDK | Anthem Central Region (OH, IN, KY) | |
| UDL | Unassigned Prefix | |
| UDM | Highmark BCBS | |
| UDN | Anthem Central Region (OH, IN, KY) | |
| UDP | Carefirst Administrators | |
| UDQ | BCBS of Michigan | |
| UDR | Anthem Blue Cross of California | |
| UDS | Independence Blue Cross | |
| UDT | Anthem Central Region (OH, IN, KY) | |
| UDU | Anthem Blue Cross of California | |
| UDV | Premera Blue Cross | |
| UDW | Regence Blue Shield of Washington | |
| UDX | BCBS of Michigan | |
| UDY | Anthem Central Region (OH, IN, KY) | |
| UDZ | BCBS of South Carolina | |
| UEA | Unassigned Prefix | |
| UEB | BCBS of Massachusetts | |
| UEC | Blue Shield of California | |
| UED | Wellmark BCBS | |
| UEE | Unassigned Prefix | |
| UEF | BCBS of Massachusetts | |
| UEG | Anthem Central Region (OH, IN, KY) | |
| UEH | Anthem Central Region (OH, IN, KY) | |
| UEI | Anthem | |
| UEJ | BCBS of Illinois | |
| UEK | Wellmark BCBS | |
| UEL | Unassigned Prefix | |
| UEM | BCBS of Massachusetts | |
| UEN | BCBS of Massachusetts | |
| UEP | Unassigned Prefix | |
| UEQ | Unassigned Prefix | |
| UER | Carefirst BCBS of Maryland | |
| UES | Empire BCBS of New York | |
| UET | Unassigned Prefix | |
| UEU | Anthem Central Region (OH, IN, KY) | |
| UEV | Anthem | |
| UEW | BCBS of Massachusetts | |
| UEX | Unassigned Prefix | |
| UEY | BCBS of Tennessee | |
| UEZ | Unassigned Prefix | |
| UFA | Unassigned Prefix | |
| UFB | BCBS of Michigan | |
| UFC | BCBS of Illinois | |
| UFD | Horizon BCBS of New Jersey | |
| UFE | BCBS of Michigan | |
| UFF | Anthem Central Region (OH, IN, KY) | |
| UFG | BCBS of Michigan | |
| UFH | Unassigned Prefix | |
| UFI | Anthem Central Region (OH, IN, KY) | |
| UFJ | BCBS of Michigan | |
| UFK | BCBS of Michigan | 866-324-9666 |
| UFL | BCBS of Michigan | 866-324-9666 |
| UFM | Anthem BCBS of Virginia | |
| UFN | Independence Blue Cross | |
| UFO | Blue Cross of Idaho | |
| UFP | Independence Blue Cross | |
| UFQ | BCBS of Michigan | |
| UFR | BCBS of Western New York | |
| UFS | BCBS of Florida | |
| UFT | Independence Blue Cross | |
| UFU | Excellus BCBS of New York | |
| UFV | BCBS of Michigan | |
| UFW | Unassigned Prefix | |
| UFX | BCBS of Michigan | |
| UFY | Wellmark BCBS | |
| UFZ | Highmark BCBS | |
| UGA | BCBS of Florida | |
| UGB | Anthem Blue Cross of California | |
| UGC | Unassigned Prefix | |
| UGD | BCBS of Michigan | 866-324-9666 |
| UGE | BCBS of Georgia | |
| UGF | BCBS of Michigan | |
| UGG | BCBS of Michigan | 866-324-9666 |
| UGH | BCBS of Michigan | |
| UGI | Unassigned Prefix | |
| UGJ | Anthem Blue Cross of California | |
| UGK | Anthem Blue Cross of California | |
| UGL | Highmark BCBS | |
| UGM | BCBS of Georgia | |
| UGN | BCBS of Illinois | |
| UGO | Anthem | |
| UGP | BCBS of Michigan | |
| UGQ | Blue Cross of Idaho | |
| UGR | Unassigned Prefix | |
| UGS | Unassigned Prefix | |
| UGT | BCBS of Alabama | |
| UGU | BCBS of Tennessee | |
| UGV | BCBS of Minnesota | |
| UGW | Anthem Blue Cross of California | |
| UGX | BCBS of Illinois | |
| UGZ | Unassigned Prefix | |
| UHA | BCBS of Illinois | |
| UHB | BCBS of Illinois | |
| UHC | BCBS of Michigan | |
| UHD | Anthem Central Region (OH, IN, KY) | |
| UHE | BCBS of Arizona | |
| UHF | Independence Blue Cross | |
| UHG | Highmark BCBS | |
| UHH | Unassigned Prefix | |
| UHI | Anthem | |
| UHJ | Unassigned Prefix | |
| UHK | Anthem Central Region (OH, IN, KY) | |
| UHL | BCBS of Arizona | |
| UHM | Unassigned Prefix | |
| UHN | Carefirst BCBS of Maryland | |
| UHO | BCBS of Illinois | |
| UHP | BCBS of Alabama | |
| UHQ | Anthem Central Region (OH, IN, KY) | |
| UHR | Highmark BCBS | |
| UHS | BCBS of Illinois | |
| UHT | Anthem Central Region (OH, IN, KY) | |
| UHU | Anthem Central Region (OH, IN, KY) | |
| UHV | Anthem | |
| UHW | BCBS of Illinois | |
| UHX | BCBS of Minnesota | |
| UHY | Unassigned Prefix | |
| UHZ | Anthem Central Region (OH, IN, KY) | |
| UIA | Unassigned Prefix | |
| UIB | BCBS of Georgia | |
| UIC | BCBS of Michigan | |
| UID | Blue Cross of Idaho | |
| UIE | Unassigned Prefix | |
| UIF | BCBS of Florida | |
| UIG | Unassigned Prefix | |
| UIH | Unassigned Prefix | |
| UIJ | BCBS of Georgia | |
| UIK | BCBS of Georgia | |
| UIL | BCBS of Michigan | |
| UIM | Premera Blue Cross | |
| UIN | BCBS of Michigan | |
| UIP | Anthem Blue Cross of California | |
| UIQ | Carefirst BCBS of Maryland | |
| UIR | Unassigned Prefix | |
| UIS | Unassigned Prefix | |
| UIT | Anthem BCBS of Colorado | |
| UIU | Carefirst BCBS of Maryland | |
| UIV | Premera Blue Cross | |
| UIW | Unassigned Prefix | |
| UIX | Horizon BCBS of New Jersey | |
| UIY | Carefirst BCBS of Maryland | |
| UJA | Unassigned Prefix | |
| UJB | Anthem | |
| UJC | BCBS of Illinois | |
| UJD | Premera Blue Cross | |
| UJE | Anthem Central Region (OH, IN, KY) | |
| UJF | BCBS of Alabama | |
| UJG | BCBS of Oklahoma | |
| UJH | Unassigned Prefix | |
| UJI | Unassigned Prefix | |
| UJJ | Unassigned Prefix | |
| UJK | Anthem Central Region (OH, IN, KY) | |
| UJL | Blue Shield of California | |
| UJM | Unassigned Prefix | |
| UJN | Unassigned Prefix | |
| UJO | Unassigned Prefix | |
| UJQ | BCBS of Texas | |
| UJS | Unassigned Prefix | |
| UJT | Unassigned Prefix | |
| UJU | Anthem Central Region (OH, IN, KY) | |
| UJV | Anthem Central Region (OH, IN, KY) | |
| UJW | Anthem Central Region (OH, IN, KY) | |
| UJX | Independence Blue Cross | |
| UJY | Anthem Central Region (OH, IN, KY) | |
| UJZ | Anthem Central Region (OH, IN, KY) | |
| UKA | BCBS of Oklahoma | |
| UKB | BCBS of Massachusetts | |
| UKC | BCBS of Oklahoma | |
| UKD | BCBS of Oklahoma | |
| UKE | Unassigned Prefix | |
| UKF | Anthem BCBS of Nevada | |
| UKG | Unassigned Prefix | |
| UKH | Anthem Central Region (OH, IN, KY) | |
| UKI | Unassigned Prefix | |
| UKJ | Empire BCBS of New York | |
| UKK | Wellmark BCBS | |
| UKL | Unassigned Prefix | |
| UKM | Unassigned Prefix | |
| UKN | Blue Cross of Idaho | |
| UKO | Wellmark BCBS | |
| UKP | Anthem Blue Cross of California | |
| UKQ | Unassigned Prefix | |
| UKR | Premera Blue Cross | |
| UKS | Carefirst Administrators | |
| UKT | Unassigned Prefix | |
| UKU | BCBS of Tennessee | |
| UKV | Anthem Central Region (OH, IN, KY) | |
| UKW | BCBS of Massachusetts | |
| UKX | Unassigned Prefix | |
| UKY | Unassigned Prefix | |
| UKZ | BCBS of Alabama | |
| ULA | Anthem BCBS of Colorado | |
| ULB | Independence Blue Cross | |
| ULC | Unassigned Prefix | |
| ULD | Premera Blue Cross | |
| ULE | BCBS of Illinois | |
| ULF | BCBS of Illinois | |
| ULG | BCBS of Georgia | |
| ULH | Anthem BCBS of Virginia | |
| ULJ | BCBS of Michigan | |
| ULK | BCBS of Western New York | |
| ULL | Carefirst BCBS of Maryland | |
| ULM | Carefirst BCBS of Maryland | |
| ULN | Unassigned Prefix | |
| ULP | Unassigned Prefix | |
| ULQ | Anthem | |
| ULR | Unassigned Prefix | |
| ULS | Anthem | |
| ULT | BCBS of Illinois | |
| ULU | Unassigned Prefix | |
| ULV | Unassigned Prefix | |
| ULW | Wellmark BCBS | |
| ULX | Anthem BCBS of Colorado | |
| ULY | Unassigned Prefix | |
| ULZ | Unassigned Prefix | |
| UMA | Unassigned Prefix | |
| UMB | Blue Cross of Idaho | |
| UMC | BCBS of Minnesota | |
| UMD | Highmark BCBS | |
| UME | Unassigned Prefix | |
| UMF | BCBS of Illinois | |
| UMG | Anthem Blue Cross of California | |
| UMH | BCBS of Tennessee | |
| UMI | Unassigned Prefix | |
| UMJ | Carefirst BCBS of Maryland | |
| UMK | BCBS of Michigan | |
| UML | Unassigned Prefix | |
| UMM | Unassigned Prefix | |
| UMN | BCBS of Michigan | |
| UMP | Unassigned Prefix | |
| UMQ | Anthem BCBS of Nevada | |
| UMR | Premera Blue Cross | |
| UMS | BCBS of Michigan | |
| UMT | BCBS of Michigan | |
| UMU | BCBS of Michigan | |
| UMV | BCBS of Michigan | |
| UMW | Unassigned Prefix | |
| UMX | Premera Blue Cross | |
| UMY | Carefirst BCBS of Maryland | |
| UMZ | Premera Blue Cross | |
| UNA | Highmark BCBS | |
| UNB | BCBS of Nebraska | |
| UNC | Unassigned Prefix | |
| UND | BCBS of Minnesota | |
| UNE | BCBS of Nebraska | |
| UNF | BCBS of Arizona | |
| UNG | BCBS of North Carolina | |
| UNH | BCBS of Alabama | |
| UNI | Unassigned Prefix | |
| UNJ | BCBS of Massachusetts | |
| UNK | BCBS of Tennessee | |
| UNL | Anthem Blue Cross of California | |
| UNM | Unassigned Prefix | |
| UNN | Premera Blue Cross | |
| UNO | Unassigned Prefix | |
| UNP | Unassigned Prefix | |
| UNQ | Carefirst BCBS of Maryland | |
| UNR | Anthem Blue Cross of California | |
| UNS | Empire BCBS of New York | |
| UNT | Empire BCBS of New York | |
| UNU | Wellmark BCBS | |
| UNV | Anthem | |
| UNW | Unassigned Prefix | |
| UNX | Anthem Central Region (OH, IN, KY) | |
| UNY | Anthem Central Region (OH, IN, KY) | |
| UNZ | Empire BCBS of New York | |
| UOA | Wellmark BCBS | |
| UOB | Wellmark BCBS | |
| UOC | BCBS of Illinois | |
| UOD | Wellmark BCBS | |
| UOE | BCBS of Illinois | |
| UOG | Horizon BCBS of New Jersey | |
| UOH | Premera Blue Cross | |
| UOI | Blue Cross of Idaho | |
| UOJ | Unassigned Prefix | |
| UOK | Horizon BCBS of New Jersey | |
| UOL | Unassigned Prefix | |
| UOM | BCBS of Michigan | |
| UON | Wellmark BCBS | |
| UOP | Anthem Central Region (OH, IN, KY) | |
| UOQ | Horizon BCBS of New Jersey | |
| UOR | Unassigned Prefix | |
| UOS | Premera Blue Cross | |
| UOV | Unassigned Prefix | |
| UOW | Anthem BCBS of Colorado | |
| UOX | Anthem | |
| UPA | BCBS of Illinois | |
| UPB | Independence Blue Cross | |
| UPC | Carefirst BCBS of Maryland | |
| UPD | Anthem Central Region (OH, IN, KY) | |
| UPE | BCBS of Texas | |
| UPF | Wellmark BCBS | |
| UPG | Anthem | |
| UPH | BCBS of Illinois | |
| UPI | BCBS of Alabama | |
| UPJ | Premera Blue Cross | |
| UPK | BCBS of Minnesota | |
| UPL | Anthem Central Region (OH, IN, KY) | |
| UPM | BCBS of New Mexico | |
| UPN | Wellmark BCBS | |
| UPP | BCBS of Texas | |
| UPR | Highmark BCBS | |
| UPS | Anthem Central Region (OH, IN, KY) | |
| UPT | BCBS of Illinois | |
| UPU | BCBS of Illinois | |
| UPV | Unassigned Prefix | |
| UPW | Anthem BCBS of Nevada | |
| UPX | BCBS of Texas | |
| UPY | BCBS of Alabama | |
| UPZ | Unassigned Prefix | |
| UQA | BCBS of Western New York | |
| UQB | Wellmark BCBS | |
| UQC | Anthem BCBS of Colorado | |
| UQD | Wellmark BCBS | |
| UQE | Anthem | |
| UQF | Unassigned Prefix | |
| UQG | Premera Blue Cross | |
| UQH | Highmark BCBS | |
| UQI | Regence Blue Shield of Washington | |
| UQJ | Anthem BCBS of Colorado | |
| UQK | Anthem Central Region (OH, IN, KY) | |
| UQL | Carefirst BCBS of Maryland | |
| UQM | Anthem Central Region (OH, IN, KY) | |
| UQN | Capital Blue Cross | |
| UQP | Unassigned Prefix | |
| UQR | BCBS of Massachusetts | |
| UQS | Unassigned Prefix | |
| UQT | BCBS of Western New York | |
| UQU | Unassigned Prefix | |
| UQV | Anthem Central Region (OH, IN, KY) | |
| UQW | Horizon BCBS of New Jersey | |
| UQX | BCBS of South Carolina | |
| UQY | Unassigned Prefix | |
| UQZ | Regence Blue Cross Blue Shield of Oregon | |
| URA | BCBS of Illinois | |
| URB | Unassigned Prefix | |
| URC | Anthem BCBS of Virginia | |
| URD | Anthem BCBS of Virginia | |
| URE | BCBS of Texas | |
| URF | Regence Blue Shield of Washington | |
| URG | Horizon BCBS of New Jersey | |
| URH | BCBS of Tennessee | |
| URJ | Unassigned Prefix | |
| URL | Excellus BCBS of New York | |
| URM | Unassigned Prefix | |
| URN | BCBS of Illinois | |
| URO | Unassigned Prefix | |
| URP | BCBS of Michigan | |
| URQ | Highmark BCBS | |
| URR | BCBS of South Carolina | |
| URS | Blue Shield of California | |
| URT | Anthem BCBS of Virginia | |
| URU | BCBS of Michigan | |
| URV | BCBS of Illinois | |
| URW | Wellmark BCBS | |
| URX | BCBS of Minnesota | |
| URY | Anthem Blue Cross of California | |
| URZ | Wellmark BCBS | |
| USA | Anthem Blue Cross of California | |
| USB | Regence BCBS of Utah | |
| USC | Highmark BCBS | |
| USD | BCBS of Delaware | |
| USE | BCBS of Texas | |
| USF | BCBS of South Carolina | |
| USG | Anthem BCBS of Virginia | |
| USH | BCBS of Alabama | |
| USI | Anthem BCBS of Virginia | |
| USJ | Empire BCBS of New York | |
| USK | Highmark BCBS | |
| USL | Anthem BCBS of Virginia | |
| USM | Blue Shield of California | |
| USN | BCBS of Oklahoma | |
| USO | BCBS of Florida | |
| USP | Anthem | |
| USQ | Anthem Central Region (OH, IN, KY) | |
| USR | Excellus BCBS of New York | |
| USS | BCBS of Texas | |
| UST | BCBS of Illinois | |
| USU | Unassigned Prefix | |
| USV | Anthem Central Region (OH, IN, KY) | |
| USW | Highmark BCBS | |
| USX | Unassigned Prefix | |
| USY | Unassigned Prefix | |
| USZ | BCBS of North Dakota | |
| UTA | Anthem | |
| UTB | Unassigned Prefix | |
| UTC | BCBS of Illinois | |
| UTD | BCBS of Illinois | |
| UTE | BCBS of North Carolina | |
| UTF | Unassigned Prefix | |
| UTG | Unassigned Prefix | |
| UTH | Unassigned Prefix | |
| UTI | Unassigned Prefix | |
| UTJ | Unassigned Prefix | |
| UTK | Unassigned Prefix | |
| UTL | BCBS of Illinois | |
| UTM | Anthem Blue Cross of California | |
| UTN | BCBS of Illinois | |
| UTO | Unassigned Prefix | |
| UTP | Anthem BCBS of Virginia | |
| UTQ | Unassigned Prefix | |
| UTR | Independence Blue Cross | |
| UTS | BCBS of Texas | |
| UTT | Anthem | |
| UTU | BCBS of Georgia | |
| UTV | Unassigned Prefix | |
| UTW | BCBS of Michigan | |
| UTX | Anthem Central Region (OH, IN, KY) | |
| UTY | Unassigned Prefix | |
| UTZ | Anthem BCBS of Virginia | |
| UUA | BCBS of Georgia | |
| UUB | Unassigned Prefix | |
| UUC | BCBS of Oklahoma | |
| UUD | BCBS of Nebraska | |
| UUE | Blue Shield of California | |
| UUF | Unassigned Prefix | |
| UUG | Unassigned Prefix | |
| UUH | BCBS of South Carolina | |
| UUI | BCBS of North Carolina | |
| UUJ | Anthem BCBS of Virginia | |
| UUK | Unassigned Prefix | |
| UUL | BCBS of Tennessee | |
| UUM | Carefirst BCBS of Maryland | |
| UUN | BCBS of Tennessee | |
| UUP | Unassigned Prefix | |
| UUQ | Blue Shield of California | |
| UUR | BCBS of South Carolina | |
| UUS | Blue Shield of California | |
| UUT | Anthem | |
| UUU | Unassigned Prefix | |
| UUV | Anthem Blue Cross of California | |
| UUW | Unassigned Prefix | |
| UUX | BCBS of Illinois | |
| UUY | Carefirst BCBS of Maryland | |
| UVA | Anthem Central Region (OH, IN, KY) | |
| UVB | Unassigned Prefix | |
| UVC | BCBS of Alabama | |
| UVD | Anthem BCBS of Virginia | |
| UVE | Unassigned Prefix | |
| UVF | BCBS of South Carolina | |
| UVG | Wellmark BCBS | |
| UVH | Empire BCBS of New York | |
| UVJ | Anthem BCBS of Virginia | |
| UVK | Unassigned Prefix | |
| UVL | Unassigned Prefix | |
| UVM | Anthem BCBS of Virginia | |
| UVN | Anthem Central Region (OH, IN, KY) | |
| UVO | Unassigned Prefix | |
| UVP | Unassigned Prefix | |
| UVQ | Unassigned Prefix | |
| UVR | Unassigned Prefix | |
| UVS | BCBS of Illinois | |
| UVT | Anthem BCBS of Virginia | |
| UVU | BCBS of Alabama | |
| UVV | Wellmark BCBS | |
| UVW | Unassigned Prefix | |
| UVX | Carefirst BCBS of Maryland | |
| UVY | Anthem Blue Cross of California | |
| UVZ | Unassigned Prefix | |
| UWA | BCBS of Michigan | |
| UWB | Anthem Central Region (OH, IN, KY) | |
| UWC | Anthem | |
| UWD | Anthem Blue Cross of California | |
| UWE | Anthem Central Region (OH, IN, KY) | |
| UWF | BCBS of Michigan | |
| UWG | BCBS of Michigan | |
| UWI | Anthem Blue Cross of California | |
| UWJ | Unassigned Prefix | |
| UWK | Unassigned Prefix | |
| UWL | Anthem | |
| UWM | Carefirst BCBS of Maryland | |
| UWN | BCBS of Illinois | |
| UWP | Unassigned Prefix | |
| UWQ | Anthem Central Region (OH, IN, KY) | |
| UWR | Anthem | |
| UWS | Unassigned Prefix | |
| UWT | Horizon BCBS of New Jersey | |
| UWU | BCBS of Tennessee | |
| UWV | Blue Shield of California | |
| UWW | BCBS of Michigan | |
| UWX | BCBS of Rhose Island | |
| UWY | Anthem | |
| UWZ | BCBS of Florida | |
| UXA | Carefirst BCBS of Maryland | |
| UXB | BCBS of Alabama | |
| UXC | Unassigned Prefix | |
| UXD | BCBS of South Carolina | |
| UXE | BCBS of Tennessee | |
| UXF | Anthem Blue Cross of California | |
| UXG | Unassigned Prefix | |
| UXH | Wellmark BCBS | |
| UXI | Horizon BCBS of New Jersey | |
| UXJ | Unassigned Prefix | |
| UXK | Highmark BCBS | |
| UXL | Highmark BCBS | |
| UXM | BCBS of Illinois | |
| UXN | Highmark BCBS | |
| UXO | Unassigned Prefix | |
| UXP | Unassigned Prefix | |
| UXQ | Anthem Central Region (OH, IN, KY) | |
| UXR | Wellmark BCBS | |
| UXS | Premera Blue Cross | |
| UXT | BCBS of Georgia | |
| UXU | BCBS of Illinois | |
| UXV | Anthem Central Region (OH, IN, KY) | |
| UXW | Horizon BCBS of New Jersey | |
| UXX | Unassigned Prefix | |
| UXY | Anthem Central Region (OH, IN, KY) | |
| UXZ | Anthem Central Region (OH, IN, KY) | |
| UYA | BCBS of Illinois | |
| UYB | Unassigned Prefix | |
| UYC | Blue Cross of Idaho | |
| UYD | Unassigned Prefix | |
| UYE | Unassigned Prefix | |
| UYF | Anthem Blue Cross of California | |
| UYG | Anthem BCBS of Virginia | |
| UYH | Anthem | |
| UYJ | Regence Blue Cross Blue Shield of Utah | |
| UYK | Anthem Blue Cross of California | |
| UYL | Unassigned Prefix | |
| UYM | Carefirst BCBS of Maryland | |
| UYN | BCBS of South Carolina | |
| UYO | BCBS of Georgia | |
| UYP | Unassigned Prefix | |
| UYQ | BCBS of Louisiana | |
| UYR | Unassigned Prefix | |
| UYS | Unassigned Prefix | |
| UYT | Unassigned Prefix | |
| UYU | BCBS of Arizona | |
| UYV | Wellmark BCBS | |
| UYW | Unassigned Prefix | |
| UYX | Anthem Central Region (OH, IN, KY) | |
| UYY | Unassigned Prefix | |
| UYZ | Blue Cross of Idaho | |
| UZA | Anthem Central Region (OH, IN, KY) | |
| UZB | Wellmark BCBS | |
| UZC | Unassigned Prefix | |
| UZE | Highmark BCBS | |
| UZF | Anthem Central Region (OH, IN, KY) | |
| UZG | Unassigned Prefix | |
| UZH | Wellmark BCBS | |
| UZI | Anthem Blue Cross of California | |
| UZJ | Anthem Central Region (OH, IN, KY) | |
| UZK | Wellmark BCBS | |
| UZL | BCBS of South Carolina | |
| UZM | BCBS of Louisiana | |
| UZN | BCBS of South Carolina | |
| UZO | BCBS of Georgia | |
| UZP | Unassigned Prefix | |
| UZQ | Anthem Central Region (OH, IN, KY) | |
| UZR | Carefirst Administrators | |
| UZS | BCBS of Texas | |
| UZT | Anthem BCBS of Colorado | |
| UZU | Unassigned Prefix | |
| UZV | Unassigned Prefix | |
| UZW | BCBS of Michigan | |
| UZX | Unassigned Prefix | |
| UZY | BCBS of Michigan | |
| UZZ | BCBS of Texas |