Insurance Identifier Lookup WAA to WZZ
| 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 |