| CoID | Company | Type | Status | States Served | 24X7 Phone |
|---|---|---|---|---|---|
| WHTCS | White & Case, LLP (CANCELLED) | Facility | C | ALL | 212-819-8200 |
| WHTEL | Whidbey Telecom | Co-Op/Rural | A | WA | 360-321-1199 |
| WHTST | Wheat State Technologies | ILEC | A | KS | 620-782-3341 |
| WIGGI | Wiggins Telephone Assn. | Facility | A | CO | 970-483-7343 |
| WIKST | Wikstrom Telephone Co Inc. | LEC | A | MN | 218-436-2121 |
| WILCC | WilCom Inc | VoIP Provider | A | USA - Nationwide | 931-388-8682 |
| WILLM | Williams College | 9-1-1 Admin-CPE ALI (9-1-1 Jurisdiction/PSAP ONLY) | A | MA | 413-822-2921 |
| WILTL | Wilton Telephone Company Inc. (Cancelled) | Facility | C | NH: Hollis, Wilton | 603-654-9911 |
| WILUV | Willamette University | PBX/PS911/Shared Tenant | A | OR | 844-232-7228 |
| WIN | Windstream | CLEC Facility ILEC VoIP Provider | A | USA - Nation Wide | 800-200-1989 option 3 |
| WIN1 | Consolidated Communications (fka SureWest TeleVi | CLEC Facility VoIP Provider | A | CA | 888-639-1611 |
| WINC | Windstream | CLEC Facility | A | USA - Nationwide | 800-200-1989 option 3 |
| WINN | Winn Telephone Co. | ILEC | A | MI | 989-866-2211 |
| WINNT | Winn Telecom | CLEC Facility | CLEC Reseller | CLEC UNE | A | MI | 866-820-3266 |
| WINSD | Winooski School District #17 - CANCELLED | PBX/PS911/Shared Tenant | C | VT | 802-316-6996 |
| WINTE | WIN LLC | CLEC Facility | A | WI | 866-206-2027 |
| WINVA | City of Winchester | 9-1-1 Admin-CPE ALI (9-1-1 Jurisdiction/PSAP ONLY) | A | VA | 540-974-8737 |
| WIPC | West IP Communications | Internet Protocol Relay Provider VoIP Provider | A | USA | 502-315-5150 |
| WIREG | Wiregrass Telecom Inc. | CLEC Facility | A | AL | 888-472-2322 |
| WIRII | Wireless II LLC dba Nebraska Wireless (Cancelled- See NECCi) | Wireless | C | NE | 308-370-0007 |
| WISD | Wylie Independent School District | PBX/PS911/Shared Tenant | A | City of Wylie | 972-429-3000 |
| WITA | Western Iowa Telephone Association - CANCELLED | 9-1-1 Admin-CPE ALI (9-1-1 Jurisdiction/PSAP ONLY) CLEC Facility ILEC | C | IA | 800-469-0811 |
| WITC | West Iowa Telephone Company | ILEC | A | IA | 712-261-1056 |
| WITSO | Waldner IT Solutions Inc | 9-1-1 Admin-CPE ALI (9-1-1 Jurisdiction/PSAP ONLY) VoIP Reseller | A | MN | MT | ND | SD | 605-999-0710 |
| WITT | Wittenberg Telephone Company (CANCELLED) | LEC | C | Central Wisconsin | 715-253-2111 |
| WIU | Western Illinois University | PBX/PS911/Shared Tenant | A | USA - Nation Wide | 309-298-1949 |
| WJHTC | USDOT/FAA | PBX/PS911/Shared Tenant | A | NJ | 609-485-5246 |
| WKC | Wilkes Cellular Inc. CANCELLED | Wireless | C | GA | 706-678-9505 |
| WKDS | Whizkids Tech | VoIP Provider | A | MN | 612-454-0401 |
| WKFLD | Town of Wakefield | 9-1-1 Admin-CPE ALI (9-1-1 Jurisdiction/PSAP ONLY) PBX/PS911/Shared Tenant | A | USA - Nationwide | 781-704-7957 |
| WKRT | West Kentucky Rural Telephone | CLEC Facility ILEC VoIP Provider | A | KY | TN | 270-856-1000 |
| WLGOR | W. L. Gore & Associates Inc. | PBX/PS911/Shared Tenant | A | USA - Nation Wide | CA | DE | MD | MT | NJ | PA | 410-506-0000 |
| WLIB | West Liberty Telephone Co. | Facility | A | 319-627 and 319-643 Prefixes (Iowa) | 319-627-4611 |
| WLK | Wilkes Telephone and Electric Company | ILEC | A | GA | 706-678-0611 |
| WLRD | Willard Telephone Company | ILEC | A | USA - Nation Wide | 970-228-4571 |
| WLSD | Warrensburg-Latham CUSD #11 | PBX/PS911/Shared Tenant | A | IL | 217-672-3514 |
| WLTO | WTC Communications | ILEC | A | IA | 563-732-3000 |
| WMA | Anew Telecom Corp dba Call America | Facility | A | CA | 866-788-4548 |
| WMATA | Washington Metro Area Transit Authority | PBX/PS911/Shared Tenant | A | DC | 202-841-9106 |
| WMCC | White Mountains Community College | VoIP Provider | A | NH | 603-752-1113 |
| WMG | Warner Music Group(Cancelled) | PBX/PS911/Shared Tenant | C | NY | 917-841-5130 |
| WMGKS | WTC Telecommunications Co. Inc. | ILEC | A | KS | 785-456-1000 |
| WMSCO | Williams County Commissioners | ILEC | A | OH | 419-636-2059 |
| WMT | Walmart.com - CANCELLED | VoIP | C | CA | 650-837-5555 |
| WMTC | Wabash Mutual Telephone Company | CLEC Facility CLEC Reseller ILEC | A | IN | OH | 419-942-1111 |
| WMTEL | Woolstock Mutual Telephone | ILEC | A | IA | 515-839-5571 |
| WMU | Western Michigan University | PBX/PS911/Shared Tenant | A | MI | 269 760-8091 |
| WNA | WinNet Telecommunications Inc. | CLEC Facility CLEC Reseller CLEC UNE VoIP Reseller VoIP Provider | A | IN | KY | 502-387-6800 |
| WNDM | City of Windom | Facility | A | MN | 507-832-8000 |
| WNINC | Watson Networks - CANCELLED | CLEC Facility VoIP Provider | C | USA - Nation Wide | 8553815700 |