BCBS Prefix Lookup WAA to WZZ
List of BCBS Prefixes WAA to WZZ
This list of bcbs prefixes includes both alpha prefixes and alpha numeric prefixes. We continue to add additional prefixes as we find them along with the blue cross blue shield provider phone number. Remember that each table has a search box at the top so it’s not necessary to page through the list of bc prefixes to find the one you need. Just enter the bc prefix in the search box to find it quickly. We appreciate your patience and support as we update our bcbs prefix lists.
| Prefix | Plan Name | Provider Phone Number | Precert Phone Number |
|---|---|---|---|
| W2A | Blue Shield of Northeastern New York | ||
| W2B | Blue Cross Blue Shield of Illinois | ||
| W2C | Anthem BCBS of Georgia | ||
| W2E | Anthem BCBS of Colorado | ||
| W2F | Blue Cross Blue Shield of Illinois | ||
| W2G | Regence Blue Cross Blue Shield of Oregon | ||
| W2I | Anthem BCBS of Virginia | ||
| W2K | Blue Cross Blue Shield of Arkansas | ||
| W2L | Blue Cross Blue Shield of Illinois | ||
| W2M | Blue Cross Blue Shield of Illinois | ||
| W2N | Blue Cross Blue Shield of Arkansas | ||
| W2P | Regence Blue Cross Blue Shield of Oregon | ||
| W2S | Regence Blue Shield of Washington | ||
| W2T | Regence Blue Cross Blue Shield of Oregon | ||
| W2W | Blue Cross Blue Shield of Arkansas | ||
| W3A | Highmark BCBS of Pennsylvania | ||
| W3C | Regence Blue Shield of Washington | ||
| W3E | Blue Cross of California | ||
| W3H | Premera Blue Cross | ||
| W3K | Premera Blue Cross | ||
| W3M | Blue Cross Blue Shield of Illinois | ||
| W3P | Empire Blue Cross Blue Shield | ||
| W3T | Blue Cross Blue Shield of Arkansas | ||
| W3W | Empire Blue Cross Blue Shield | ||
| W3X | Empire Blue Cross Blue Shield | ||
| W4F | Blue Cross Blue Shield of Texas | ||
| W4G | Blue Cross Blue Shield of Texas | ||
| W4J | Blue Cross Blue Shield of Texas | ||
| W4K | Blue Cross Blue Shield of Texas | ||
| W4M | Blue Cross Blue Shield of Texas | ||
| W4N | Blue Cross Blue Shield of Texas | ||
| W4P | Blue Cross Blue Shield of Texas | ||
| W4R | Blue Cross Blue Shield of Texas | ||
| W4T | Premera Blue Cross | ||
| W4V | Blue Cross Blue Shield of Texas | ||
| W4W | Blue Cross Blue Shield of Texas | ||
| W4X | Blue Cross Blue Shield of Texas | ||
| W4Y | Blue Cross Blue Shield of Texas | ||
| W4Z | Blue Cross Blue Shield of Texas | ||
| W5H | Premera Blue Cross | ||
| W5M | Blue Cross Blue Shield of Illinois | ||
| W5T | Premera Blue Cross | ||
| W6A | Blue Cross Blue Shield of Texas | ||
| W7H | Blue Cross Blue Shield of Illinois | ||
| W8A | Anthem BCBS of Wisconsin | ||
| W8B | Anthem BCBS of Wisconsin | ||
| WAA | BCBS of Alabama | ||
| WAB | BCBS of Illinois | ||
| WAC | Regence BCBS | ||
| WAD | BCBS of Florida | ||
| WAE | BCBS of Texas | ||
| WAF | Premera BCBS of Alaska | ||
| WAG | BCBS of Illinois | ||
| WAH | Premera Blue Cross | ||
| WAI | Regence BCBS | ||
| WAJ | BCBS of South Carolina | ||
| WAK | BCBS of South Carolina | ||
| WAL | BCBS of Massachusetts | ||
| WAM | Highmark BCBS | ||
| WAN | BCBS of Michigan | ||
| WAO | Blue Shield of California | ||
| WAP | Carefirst BCBS of Maryland | ||
| WAQ | BCBS of South Carolina | ||
| WAR | BCBS of South Carolina | ||
| WAS | Unassigned Prefix | ||
| WAT | BCBS of Rhode Island | ||
| WAU | Wellmark BCBS | ||
| WAV | BCBS of Massachusetts | ||
| WAW | BCBS of Massachusetts | ||
| WAX | Premera Blue Cross | ||
| WAY | Horizon BCBS of New Jersey | ||
| WAZ | Premera Blue Cross | ||
| WBA | BCBS of Illinois | ||
| WBB | Blue Shield of California | ||
| WBC | Premera Blue Cross | ||
| WBD | BCBS of South Carolina | ||
| WBE | Blue Cross of Idaho | ||
| WBF | Highmark BCBS | ||
| WBG | Regence BCBS of Washington | ||
| WBH | Anthem BCBS of Ohio | ||
| WBI | Anthem BCBS of Ohio | ||
| WBJ | Premera Blue Cross | ||
| WBK | BCBS of North Carolina | ||
| WBL | Anthem BCBS of Kentucky | ||
| WBM | Wellmark BCBS | ||
| WBN | Highmark BCBS | ||
| WBO | BCBS of Oklahoma | ||
| WBP | Regence BCBS of Washington | ||
| WBQ | BCBS of Michigan | ||
| WBR | Anthem Blue Cross of California | ||
| WBS | Wellmark BCBS | ||
| WBT | Anthem BCBS of Ohio | ||
| WBU | BCBS of Michigan | ||
| WBV | BCBS of Illinois | ||
| WBW | BCBS of Nebraska | ||
| WBX | Blue Shield of Northeastern New York | ||
| WBY | BCBS of Minnesota | ||
| WBZ | Blue Cross of Idaho | ||
| WCA | Unassigned Prefix | ||
| WCB | Wellmark BCBS | ||
| WCC | BCBS of Illinois | ||
| WCD | BCBS of Minnesota | ||
| WCE | Anthem Blue Cross of California | ||
| WCF | Unassigned Prefix | ||
| WCG | Anthem BCBS of Ohio | ||
| WCH | BCBS of Massachusetts | ||
| WCI | Anthem BCBS of Wisconsin | ||
| WCJ | Unassigned Prefix | ||
| WCK | BCBS of Massachusetts | ||
| WCL | Premera Blue Cross | ||
| WCM | Highmark BCBS | ||
| WCN | Regence BCBS | ||
| WCO | Capital Blue Cross | ||
| WCP | Regence Blue Cross Blue Shield of Oregon | ||
| WCQ | Wellmark BCBS | ||
| WCR | Unassigned Prefix | ||
| WCS | BCBS of Minnesota | ||
| WCT | Anthem Blue Cross of California | ||
| WCU | Anthem Blue Cross of California | ||
| WCV | BCBS of Massachusetts | ||
| WCW | Blue Shield of California | ||
| WCX | Wellmark BCBS | ||
| WCY | Regence BCBS of Washington | ||
| WCZ | Blue Cross of Idaho | ||
| WDA | Carefirst BCBS of Maryland | ||
| WDB | Anthem BCBS of Virginia | ||
| WDC | Unassigned Prefix | ||
| WDD | Carefirst BCBS of Maryland | ||
| WDE | BCBS of Alabama | ||
| WDF | Carefirst BCBS of Maryland | ||
| WDG | Carefirst BCBS of Maryland | ||
| WDH | Wellmark BCBS | ||
| WDI | Independence Blue Cross | ||
| WDJ | Unassigned Prefix | ||
| WDK | Carefirst BCBS of Maryland | ||
| WDL | Unassigned Prefix | ||
| WDM | BCBS of Nebraska | ||
| WDN | Unassigned Prefix | ||
| WDO | Independence Blue Cross | ||
| WDP | HIghmark BCBS | ||
| WDQ | Anthem BCBS of Ohio | ||
| WDR | Regence Blue Shield of Washington | ||
| WDS | BCBS of South Carolina | ||
| WDT | Regence Blue Cross Blue Shield of Utah | ||
| WDU | Blue Shield of Ohio | ||
| WDV | Independence Blue Cross | ||
| WDW | Unassigned Prefix | ||
| WDX | Anthem BCBS of Virginia | ||
| WDY | Unassigned Prefix | ||
| WDZ | Anthem Blue Cross of California | ||
| WEA | Anthem BCBS of Georgia | ||
| WEB | Regence Blue Cross Blue Shield of Oregon | ||
| WEC | BCBS of Minnesota | ||
| WED | Blue Shield of California | ||
| WEE | Wellmark BCBS | ||
| WEF | BCBS of Minnesota | ||
| WEG | BCBS of Texas | ||
| WEH | Wellmark BCBS | ||
| WEI | Wellmark BCBS | ||
| WEJ | Carefirst BCBS | ||
| WEK | Wellmark BCBS | ||
| WEL | BCBS of Massachusetts | ||
| WEM | Anthem Blue Cross of California | ||
| WEN | Unassigned Prefix | ||
| WEO | Unassigned Prefix | ||
| WEP | Anthem Blue Cross of California | ||
| WEQ | BCBS of Nebraska | ||
| WER | BCBS of Nebraska | ||
| WES | BCBS of Arkansas Blue Advantage | ||
| WET | Anthem Blue Cross of California | ||
| WEU | Premera Blue Cross | ||
| WEV | BCBS of Western New York | ||
| WEW | Carefirst BCBS of Maryland | ||
| WEX | Regence BCBS of Utah | ||
| WEY | Unassigned Prefix | ||
| WEZ | Unassigned Prefix | ||
| WFA | Highmark BCBS | ||
| WFB | Carefirst BCBS of Maryland | ||
| WFC | Blue Cross of Idaho | ||
| WFD | Anthem Blue Cross of California | ||
| WFE | Regence BCBS of Washington | ||
| WFF | BCBS of Tennessee | ||
| WFG | Regence BCBS | ||
| WFH | BCBS of Alabama | ||
| WFI | Empire BCBS of New York | ||
| WFJ | Carefirst BCBS of Maryland | ||
| WFK | BCBS of Michigan | ||
| WFL | Anthem BCBS of Georgia | ||
| WFM | Excellus BCBS of New York | ||
| WFN | Regence BCBS of Washington | ||
| WFO | BCBS of Tennessee | ||
| WFP | BCBS of Illinois | ||
| WFQ | Anthem BCBS of Indiana | ||
| WFR | Unassigned Prefix | ||
| WFS | BCBS of Kansas City | ||
| WFT | Premera Blue Cross | ||
| WFU | BCBS of South Carolina | ||
| WFV | Carefirst BCBS of Maryland | ||
| WFW | Highmark BCBS | ||
| WFX | Premera Blue Cross | ||
| WFY | Carefirst BCBS of Maryland | ||
| WFZ | BCBS of South Carolina | ||
| WGA | Premera Blue Cross | ||
| WGB | Blue Cross of Idaho | ||
| WGC | BCBS of Massachusetts | ||
| WGD | Wellmark BCBS | ||
| WGE | BCBS of Alabama | ||
| WGF | Anthem Blue Cross of California | ||
| WGG | Unassigned Prefix | ||
| WGH | Wellmark BCBS | ||
| WGI | BCBS of Michigan | ||
| WGJ | Carefirst BCBS of Maryland | ||
| WGK | Unassigned Prefix | ||
| WGL | Anthem BCBS of Georgia | ||
| WGM | Anthem BCBS of Virginia | ||
| WGN | Excellus BCBS of New York | ||
| WGO | Blue Shield of California | ||
| WGP | Wellmark BCBS | ||
| WGQ | Anthem BCBS of New Hampshire | ||
| WGR | Wellmark BCBS | ||
| WGS | Unassigned Prefix | ||
| WGT | BCBS of Western New York | ||
| WGU | Unassigned Prefix | ||
| WGV | Anthem Blue Cross of California | ||
| WGW | Anthem BCBS of Missouri | ||
| WGX | BCBS of Arkansas | ||
| WGY | Carefirst BCBS of Maryland | ||
| WGZ | BCBS of Illinois | ||
| WHA | Unassigned Prefix | ||
| WHB | BCBS of Massachusetts | ||
| WHC | BCBS of Michigan | ||
| WHD | BCBS of Michigan | ||
| WHE | Carefirst BCBS | ||
| WHF | Wellmark BCBS | ||
| WHG | Highmark BCBS | ||
| WHH | Blue Shield of California | ||
| WHI | Empire BCBS of New York | ||
| WHJ | BCBS of Massachusetts | ||
| WHK | BCBS of Louisiana | ||
| WHL | BCBS of Western New York | ||
| WHM | Unassigned Prefix | ||
| WHN | BCBS of Michigan | ||
| WHO | BCBS of Michigan | ||
| WHP | Carefirst BCBS of Maryland | ||
| WHQ | Highmark BCBS | ||
| WHR | Highmark BCBS | ||
| WHS | BCBS of Illinois | ||
| WHT | BCBS of Massachusetts | ||
| WHU | Wellmark BCBS | ||
| WHV | Independence Blue Cross | ||
| WHW | BCBS of Minnesota | ||
| WHX | BCBS of Massachusetts | ||
| WHY | Anthem BCBS of Ohio | ||
| WHZ | Anthem BCBS of Georgia | ||
| WIA | Anthem BCBS of Virginia | ||
| WIB | BCBS of South Carolina | ||
| WIC | Capital Blue Cross | ||
| WID | BCBS of Michigan | ||
| WIE | BCBS of Arkansas Blue Advantage | ||
| WIF | BCBS of North Carolina | ||
| WIG | Anthem BCBS of Wisconsin | ||
| WIH | Premera Blue Cross | ||
| WII | BCBS of Alabama | ||
| WIJ | BCBS of Georgia | ||
| WIK | Blue Shield of California | ||
| WIL | BCBS of Alabama | ||
| WIM | Blue Shield of California | ||
| WIN | Wellmark BCBS | ||
| WIO | Blue Shield of California | ||
| WIP | Regence BCBS | ||
| WIQ | Independence Blue Cross | ||
| WIR | BCBS of Michigan | ||
| WIS | Unassigned Prefix | ||
| WIT | BCBS of Michigan | ||
| WIU | Anthem BCBS of Wisconsin | ||
| WIV | Independence Blue Cross | ||
| WIW | BCBS of Georgia | ||
| WIX | Anthem BCBS of Georgia | ||
| WIY | BCBS of Kansas City | ||
| WIZ | Regence Blue Cross Blue Shield of Oregon | ||
| WJA | Premera Blue Cross | ||
| WJB | Anthem BCBS of California | ||
| WJC | Carefirst BCBS of Maryland | ||
| WJD | Anthem BCBS of Georgia | ||
| WJE | BCBS of Georgia | ||
| WJF | BCBS of Illinois | ||
| WJG | BCBS of Massachusetts | ||
| WJH | Carefirst Administrators | ||
| WJI | Highmark BCBS | ||
| WJJ | Carefirst Administrators | ||
| WJK | Capital Blue Cross | ||
| WJL | BCBS of Nebraska | ||
| WJM | Wellmark BCBS | ||
| WJN | BCBS of South Carolina | ||
| WJO | Highmark BCBS | ||
| WJP | Anthem BCBS of Wisconsin | ||
| WJQ | Unassigned Prefix | ||
| WJR | Anthem BCBS of Virginia | ||
| WJS | Anthem BCBS of Ohio | ||
| WJT | Anthem BCBS of Missouri | ||
| WJU | Wellmark BCBS | ||
| WJV | BCBS of Texas | ||
| WJW | BCBS of Illinois | ||
| WJX | BCBS of Illinois | ||
| WJY | BCBS of Illinois | ||
| WJZ | BCBS of Massachusetts | ||
| WKA | Anthem BCBS of Ohio | ||
| WKB | Unassigned Prefix | ||
| WKC | Capital Blue Cross | ||
| WKD | BCBS of Alabama | ||
| WKE | Unassigned Prefix | ||
| WKF | Anthen Blue Cross of California | ||
| WKG | Unassigned Prefix | ||
| WKH | Anthem Blue Cross of California | ||
| WKI | Regence BCBS | ||
| WKJ | Anthem BCBS of Ohio | ||
| WKK | BCBS of Illinois | ||
| WKL | Premera Blue Cross | ||
| WKM | Empire BCBS of New York | ||
| WKN | Empire BCBS of New York | ||
| WKO | BCBS of Alabama | ||
| WKP | Capital Blue Cross | ||
| WKQ | Carefirst Administrators | ||
| WKR | Anthem BCBS of Wisconsin | ||
| WKS | BCBS of Massachusetts | ||
| WKT | Anthem BCBS of Wisconsin | ||
| WKU | BCBS of North Carolina | ||
| WKV | Unassigned Prefix | ||
| WKW | BCBS of Massachusetts | ||
| WKX | Anthem BCBS of Wisconsin | ||
| WKY | BCBS of Illinois | ||
| WKZ | Anthem BCBS of Wisconsin | ||
| WLA | BCBS of Delaware | ||
| WLB | BCBS of South Carolina | ||
| WLC | BCBS of Illinois | ||
| WLD | Blue Shield of California | ||
| WLE | BCBS of Michigan | ||
| WLF | BCBS of Illinois | ||
| WLG | BCBS of Alabama | ||
| WLH | Blue Shield of California | ||
| WLI | Anthem BCBS of Ohio | ||
| WLJ | Premera Blue Cross | ||
| WLK | Blue Cross of Idaho | ||
| WLL | BCBS of Illinois | ||
| WLM | BCBS of Illinois | ||
| WLN | BCBS of Delaware | ||
| WLO | BCBS of Kansas City | ||
| WLP | Anthem Blue Cross of California | ||
| WLQ | Wellmark BCBS | ||
| WLR | Empire BCBS of New York | ||
| WLS | BCBS of Alabama | ||
| WLT | Wellmark BCBS | ||
| WLU | Anthem BCBS of Indiana | ||
| WLV | BCBS of Alabama | ||
| WLW | Wellmark BCBS | ||
| WLX | Wellmark BCBS | ||
| WLY | Wellmark BCBS | ||
| WLZ | BCBS of Delaware | ||
| WMA | Wellmark BCBS | ||
| WMB | BCBS of Arkansas Blue Advantage | ||
| WMC | BCBS of Minnesota | ||
| WMD | BCBS of Minnesota | ||
| WME | BCBS of Illinois | ||
| WMF | Wellmark BCBS | ||
| WMG | Anthem Blue Cross of California | ||
| WMH | Blue Cross of Northeast Pennsylvania | ||
| WMI | BCBS of Michigan | ||
| WMJ | BCBS of Arkansas Blue Advantage | ||
| WMK | Capital Blue Cross | ||
| WML | Anthem BCBS of Wisconsin | ||
| WMM | BCBS of Minnesota | ||
| WMN | BCBS of Illinois | ||
| WMO | Anthem Blue Cross of California | ||
| WMP | BCBS of Minnesota | ||
| WMQ | Capital Blue Cross | ||
| WMR | Anthem BCBS of Indiana | ||
| WMS | Anthem BCBS of Indiana | ||
| WMT | Anthem Blue Cross of California | ||
| WMU | BCBS of Texas | ||
| WMV | BCBS of Tennessee | ||
| WMW | BCBS of Arkansas Blue Advantage | ||
| WMX | Anthem BCBS of Indiana | ||
| WMY | BCBS of Arkansas Blue Advantage | ||
| WMZ | Anthem BCBS of Indiana | ||
| WNA | Anthem BCBS of Indiana | ||
| WNB | Empire BCBS of New York | ||
| WNC | BCBS of Alabama | ||
| WND | Excellus BCBS of New York | ||
| WNE | Premera Blue Cross | ||
| WNF | Highmark BCBS | ||
| WNG | Anthem BCBS of Wisconsin | ||
| WNH | Empire BCBS of New York | ||
| WNI | Regence BCBS | ||
| WNJ | Unassigned Prefix | ||
| WNK | BCBS of Arkansas Blue Advantage | ||
| WNL | Carefirst BCBS | ||
| WNM | BCBS of Western New York | ||
| WNN | BCBS of Illinois | ||
| WNO | BCBS of Massachusetts | ||
| WNP | Anthem Blue Cross of California | ||
| WNQ | BCBS of Michigan | ||
| WNR | Anthem BCBS of Georgia | ||
| WNS | BCBS of Illinois | ||
| WNT | BCBS of Illinois | ||
| WNU | BCBS of Massachusetts | ||
| WNV | Unassigned Prefix | ||
| WNW | BCBS of Massachusetts | ||
| WNX | BCBS of Arkansas | ||
| WNY | BCBS of Illinois | ||
| WNZ | BCBS of Massachusetts | ||
| WOA | Anthem Blue Cross of California | ||
| WOB | Premera Blue Cross | ||
| WOC | Carefirst Administrators | ||
| WOD | Independence Blue Cross | ||
| WOE | Blue Cross of California | ||
| WOF | BCBS of Michigan | ||
| WOG | Unassigned Prefix | ||
| WOH | Blue Cross of Northeast Pennsylvania | ||
| WOI | Unassigned Prefix | ||
| WOJ | BCBS of Arkansas Blue Advantage | ||
| WOK | BCBS of South Carolina | ||
| WOL | Blue Shield of Northeastern New York | ||
| WOM | Independence Blue Cross | ||
| WON | Unassigned Prefix | ||
| WOO | BCBS of Michigan | ||
| WOP | BCBS of Michigan | ||
| WOQ | BCBS of Michigan | ||
| WOR | Unassigned Prefix | ||
| WOS | Anthem BCBS of Nevada | ||
| WOT | BCBS of Michigan | ||
| WOU | Wellmark BCBS | ||
| WOV | Anthem Blue Cross of California | ||
| WOW | Premera Blue Cross | ||
| WOX | Anthem Blue Cross of California | ||
| WOY | BCBS of Michigan | ||
| WOZ | Anthem BCBS of Colorado | ||
| WPA | BCBS of Arkansas | ||
| WPB | Capital Blue Cross | ||
| WPC | Anthem Blue Cross of California | ||
| WPD | Anthem BCBS of Ohio | ||
| WPE | Anthem of Missouri | ||
| WPF | Unassigned Prefix | ||
| WPG | Carefirst BCBS of Maryland | ||
| WPH | BCBS of Alabama | ||
| WPI | BCBS of Michigan | ||
| WPJ | Unassigned Prefix | ||
| WPK | Anthem Blue Cross of California | ||
| WPL | Anthem BCBS of Ohio | ||
| WPM | Unassigned Prefix | ||
| WPN | Unassigned Prefix | ||
| WPO | BCBS of Michigan | ||
| WPP | Anthem Blue Cross of California | ||
| WPQ | Anthem BCBS of Colorado | ||
| WPR | Empire BCBS of New York | ||
| WPS | BCBS of Arkansas Blue Advantage | ||
| WPT | Wellmark BCBS | ||
| WPU | Anthem Blue Cross of California | ||
| WPV | Anthem Blue Cross of California | ||
| WPW | Anthem BCBS of Indiana | ||
| WPX | Anthem Blue Cross of California | ||
| WPY | Anthem Blue Cross of California | ||
| WPZ | Wellmark BCBS | ||
| WQA | Unassigned Prefix | ||
| WQB | Independence Blue Cross | ||
| WQC | BCBS of Rhose Island | ||
| WQD | BCBS of Western New York | ||
| WQE | Highmark BCBS | ||
| WQF | Anthem BCBS of Virginia | ||
| WQG | Highmark BCBS | ||
| WQH | Highmark BCBS | ||
| WQI | Highmark BCBS | ||
| WQJ | BCBS of Western New York | ||
| WQK | BCBS of Western New York | ||
| WQL | Unassigned Prefix | ||
| WQM | Anthem BCBS of Wisconsin | ||
| WQN | BCBS of Illinois | ||
| WQO | BCBS of Western New York | ||
| WQP | Anthem BCBS of Ohio | ||
| WQQ | BCBS of Western New York | ||
| WQR | Highmark BCBS | ||
| WQS | Unassigned Prefix | ||
| WQT | BCBS of South Carolina | ||
| WQU | Anthem BCBS of Ohio | ||
| WQV | BCBS of Minnesota | ||
| WQW | BCBS of Florida | ||
| WQX | Blue Shield of California | ||
| WQY | Anthem BCBS of Ohio | ||
| WQZ | BCBS of North Carolina | ||
| WRA | Wellmark BCBS | ||
| WRB | Unassigned Prefix | ||
| WRC | Horizon BCBS of New Jersey | ||
| WRD | Blue Shield of Northeastern New York | ||
| WRE | Blue Cross of Idaho | ||
| WRF | BCBS of Massachusetts | ||
| WRG | Anthem BCBS of Ohio | ||
| WRH | Unassigned Prefix | ||
| WRI | BCBS of Alabama | ||
| WRJ | BCBS of South Carolina | ||
| WRK | BCBS of Rhose Island | ||
| WRL | Regence Blue Cross Blue Shield of Utah | ||
| WRM | Highmark BCBS | ||
| WRN | Regence BCBS | ||
| WRO | Anthem BCBS of Georgia | ||
| WRP | Unassigned Prefix | ||
| WRQ | Anthem BCBS of Georgia | ||
| WRR | BCBS of Western New York | ||
| WRS | Anthem Blue Cross of California | ||
| WRT | Blue Cross of Idaho | ||
| WRU | Wellmark BCBS | ||
| WRV | BCBS of Alabama | ||
| WRW | BCBS of Rhose Island | ||
| WRX | Anthem Blue Cross of California | ||
| WRY | Anthem BCBS of Georgia | ||
| WRZ | Anthem BCBS of Georgia | ||
| WSA | Empire BCBS of New York | ||
| WSB | BCBS of Minnesota | ||
| WSC | BCBS of Illinois | ||
| WSD | Anthem BCBS of Wisconsin | ||
| WSE | BCBS of Arizona | ||
| WSF | BCBS of Arkansas | ||
| WSG | Blue Shield of California | ||
| WSH | Highmark BCBS | ||
| WSI | Carefirst BCBS of Maryland | ||
| WSJ | Anthem Blue Cross of California | ||
| WSK | Anthem BCBS of Nevada | ||
| WSL | Wellmark BCBS | ||
| WSM | BCBS of Wisconsin | ||
| WSN | Anthem Blue Cross of California | ||
| WSO | Anthem BCBS of Ohio | ||
| WSP | Anthem BCBS of Indiana | ||
| WSQ | BCBS of Massachusetts | ||
| WSR | Unassigned Prefix | ||
| WSS | BCBS of Western New York | ||
| WST | BCBS of Massachusetts | ||
| WSU | Wellmark BCBS | ||
| WSV | Wellmark BCBS | ||
| WSW | BCBS of Illinois | ||
| WSX | BCBS of Minnesota | ||
| WSY | Anthem BCBS of Ohio | ||
| WSZ | BCBS of Illinois | ||
| WTA | Anthem BCBS of Ohio | ||
| WTB | Wellmark BCBS | ||
| WTC | Premera Blue Cross | ||
| WTD | BCBS of Western New York | ||
| WTE | BCBS of Illinois | ||
| WTF | BCBS of Nebraska | ||
| WTG | Regence BCBS of Oregon | ||
| WTH | BCBS of Illinois | ||
| WTI | Anthem BCBS of Virginia | ||
| WTJ | Unassigned Prefix | ||
| WTK | Anthem Blue Cross of California | ||
| WTL | Unassigned Prefix | ||
| WTM | BCBS of Illinois | ||
| WTN | Wellmark BCBS | ||
| WTO | BCBS of Arkansas Blue Advantage | ||
| WTP | Carefirst BCBS of Maryland | ||
| WTQ | BCBS of Alabama | ||
| WTR | BCBS of Illinois | ||
| WTS | Anthem BCBS of Wisconsin | ||
| WTT | Premera Blue Cross | ||
| WTU | Premera Blue Cross | ||
| WTV | Premera Blue Cross | ||
| WTW | Independence Blue Cross | ||
| WTX | Unassigned Prefix | ||
| WTY | Unassigned Prefix | ||
| WTZ | BCBS of Illinois | ||
| WUA | BCBS of Massachusetts | ||
| WUB | BCBS of Texas | ||
| WUC | Empire BCBS of New York | ||
| WUD | Unassigned Prefix | ||
| WUE | Blue Shield of California | ||
| WUF | Independence Blue Cross | ||
| WUG | Horizon BCBS of New Jersey | ||
| WUH | Carefirst BCBS | ||
| WUI | Anthem BCBS of Ohio | ||
| WUJ | BCBS of Rhose Island | ||
| WUK | Anthem BCBS of Indiana | ||
| WUL | Anthem BCBS of Indiana | ||
| WUM | Highmark BCBS | ||
| WUN | BCBS of North Carolina | ||
| WUO | Blue Shield of California | ||
| WUP | Anthem Blue Cross of California | ||
| WUQ | Wellmark BCBS | ||
| WUR | Horizon BCBS of New Jersey | ||
| WUS | Anthem BCBS of Colorado | ||
| WUT | Anthem BCBS of Ohio | ||
| WUU | BCBS of South Carolina | ||
| WUV | BCBS of Massachusetts | ||
| WUW | Anthem Blue Cross of California | ||
| WUX | Anthem BCBS of Ohio | ||
| WUY | Blue Cross of Idaho | ||
| WUZ | Unassigned Prefix | ||
| WVA | Blue Cross of Idaho | ||
| WVB | Unassigned Prefix | ||
| WVC | Anthem BCBS of Wisconsin | ||
| WVD | BCBS of South Carolina | ||
| WVE | BCBS of Illinois | ||
| WVF | Unassigned Prefix | ||
| WVG | BCBS of South Carolina | ||
| WVH | Highmark BCBS of West Virginia | ||
| WVI | Blue Shield of California | ||
| WVJ | BCBS of Georgia | ||
| WVK | BCBS of North Carolina | ||
| WVL | BCBS of Alabama | ||
| WVM | BCBS of Michigan | ||
| WVN | Anthem Blue Cross of California | ||
| WVO | BCBS of Arkansas Blue Advantage | ||
| WVP | Carefirst Administrators | ||
| WVQ | Unassigned Prefix | ||
| WVR | Anthem BCBS of Georgia | ||
| WVS | Blue Shield of California | ||
| WVT | Highmark BCBS | ||
| WVU | Anthem BCBS of Kentucky | ||
| WVV | BCBS of Illinois | ||
| WVW | Unassigned Prefix | ||
| WVX | Anthem BCBS of Virginia | ||
| WVY | Anthem BCBS of Colorado | ||
| WVZ | Wellmark BCBS | ||
| WWA | Empire BCBS of New York | ||
| WWB | BCBS of Massachusetts | ||
| WWC | BCBS of Massachusetts | ||
| WWD | Regence Blue Cross Blue Shield of Oregon | ||
| WWE | Wellmark BCBS | ||
| WWF | BCBS of Illinois | ||
| WWG | BCBS of Alabama | ||
| WWH | BCBS of Texas | ||
| WWI | Premera Blue Cross | ||
| WWJ | Anthem BCBS of Ohio | ||
| WWK | Anthem BCBS of Ohio | ||
| WWL | Unassigned Prefix | ||
| WWM | Premera Blue Cross | ||
| WWN | BCBS of Nebraska | ||
| WWO | Carefirst BCBS of Maryland | ||
| WWP | Anthem Blue Cross of California | ||
| WWQ | Anthem BCBS of Wisconsin | ||
| WWR | Wellmark BCBS | ||
| WWS | Anthem Blue Cross of California | ||
| WWT | Carefirst BCBS of Maryland | ||
| WWU | BCBS of Massachusetts | ||
| WWV | BCBS of Texas | ||
| WWW | Carefirst BCBS | ||
| WWX | Carefirst BCBS of Maryland | ||
| WWY | BCBS of Massachusetts | ||
| WWZ | BCBS of Michigan | ||
| WXA | Premera Blue Cross | ||
| WXB | Wellmark BCBS | ||
| WXC | BCBS of Texas | ||
| WXD | BCBS of Texas | ||
| WXE | Nebraska BCBS | ||
| WXF | BCBS of Texas | ||
| WXG | BCBS of Texas | ||
| WXH | BCBS of South Carolina | ||
| WXI | Unassigned Prefix | ||
| WXJ | Regence BCBS | ||
| WXK | Wellmark BCBS | ||
| WXL | BCBS of Minnesota | ||
| WXM | Highmark BCBS | ||
| WXN | BCBS of Illinois | ||
| WXO | Anthem BCBS of Colorado | ||
| WXP | Anthem BCBS of Missouri | ||
| WXQ | Wellmark BCBS | ||
| WXR | BCBS of Texas | ||
| WXS | BCBS of Tennessee | ||
| WXT | Blue Shield of California | ||
| WXU | BCBS of Texas | ||
| WXV | BCBS of Michigan | ||
| WXW | Blue Shield of California | ||
| WXX | BCBS of Texas | ||
| WXY | Anthem Blue Cross of California | ||
| WXZ | BCBS of South Carolina | ||
| WYA | Unassigned Prefix | ||
| WYB | BCBS of Illinois | ||
| WYC | Anthem Blue Cross of California | ||
| WYD | Anthem BCBS of Virginia | ||
| WYE | Horizon BCBS of New Jersey | ||
| WYF | Wellmark BCBS | ||
| WYG | Anthem BCBS of Ohio | ||
| WYH | BCBS of Illinois | ||
| WYI | BCBS of Michigan | ||
| WYJ | Anthem BCBS of Virginia | ||
| WYK | Anthem BCBS of Virginia | ||
| WYL | Anthem Blue Cross of California | ||
| WYM | BCBS of Illinois | ||
| WYN | Unassigned Prefix | ||
| WYO | BCBS of Michigan | ||
| WYP | Premera Blue Cross | ||
| WYQ | Anthem BCBS of Virginia | ||
| WYR | BCBS of Arkansas Blue Advantage | ||
| WYS | BCBS of Alabama | ||
| WYT | Carefirst BCBS of Maryland | ||
| WYU | BCBS of Illinois | ||
| WYV | Regence BCBS of Washington | ||
| WYW | Blue Cross of Idaho | ||
| WYX | Independence Blue Cross | ||
| WYY | BCBS of Oklahoma | ||
| WYZ | BCBS of South Carolina | ||
| WZA | BCBS of Illinois | ||
| WZB | Anthem BCBS of Wisconsin | ||
| WZC | Wellmark BCBS | ||
| WZD | Anthem BCBS of Wisconsin | ||
| WZE | Unassigned Prefix | ||
| WZF | Carefirst BCBS | ||
| WZG | BCBS of Texas | ||
| WZH | Premera Blue Cross | ||
| WZI | Blue Shield of California | ||
| WZJ | Unassigned Prefix | ||
| WZK | Regence BCBS of Washington | ||
| WZL | Anthem BCBS of Wisconsin | ||
| WZM | Anthem BCBS of Ohio | ||
| WZN | Wellmark BCBS | ||
| WZO | Regence BCBS | ||
| WZP | Anthem BCBS of Wisconsin | ||
| WZQ | Regence BCBS of Washington | ||
| WZR | Anthem BCBS of Colorado | ||
| WZS | Anthem BCBS of Colorado | ||
| WZT | Anthem BCBS of Colorado | ||
| WZU | Anthem BCBS of Wisconsin | ||
| WZV | Anthem BCBS of Wisconsin | ||
| WZW | BCBS of South Carolina | ||
| WZX | Wellmark BCBS | ||
| WZY | Anthem BCBS of Ohio | ||
| WZZ | BCBS of Minnesota |