| Cooperative | State |
|---|
| 3 Rivers Telephone Cooperative | Montana |
| Absaraka Cooperative Telephone | North Dakota |
| Ace Communication Group | Minnesota |
| Adams Telephone Co-operative | Illinois |
| Agate Mutual Telephone Cooperative | Colorado |
| Albany Mutual Telephone | Minnesota |
| Allband Communications Cooperative | Michigan |
| Alliance Communications Cooperative | South Dakota, Minnesota & Iowa |
| Arcadia Telephone Cooperative | Iowa |
| Arctic Slope Telephone Association Cooperative (ASTAC) | Alaska |
| Atlantic Telephone Membership Cooperative (ATMC) | North Carolina |
| Ardmore Telephone Company | Alabama & Tennessee |
| Arthur Mutual Telephone Company | Ohio |
| Ayrshire Communications (Ayrshire Farmers Mutual Telephone) | Iowa |
| Ballard Telephone Cooperative | Kentucky |
| Beaver Creek Cooperative Company | Oregon |
| BEK Communications Cooperative | North Dakota |
| Ben Lomand Connect (Ben Lomand Rural Telephone Cooperative) | Tennessee |
| Benton Cooperative Telephone Company | Minnesota |
| Blackfoot Telephone Cooperative | Montana |
| Bledsoe Telephone Cooperative | Tennessee |
| Brazos Telephone Cooperative | Texas |
| Bristol Bay Telephone Cooperative | Alaska |
| Brooklyn Mutual Telecommunications Cooperative | Iowa |
| Buggs Island Telephone Cooperative | Virginia |
| Bulloch County Rural Telephone Cooperative | Georgia |
| Cap Rock Telephone Cooperative | Texas |
| Central Arkansas Telephone Cooperative | Arkansas |
| Central Texas Telephone Cooperative | Texas |
| Citizens Mutual Telephone Cooperative | Iowa |
| Citizens Telephone Cooperative | Wisconsin |
| Citizens Telephone Cooperative | Virginia |
| Clear Creek Communications (née Clear Creek Mutual Telephone) | Oregon |
| Canby Telcom | Oregon |
| CML Telephone Cooperative Association | Iowa |
| Cochrane Cooperative Telephone Company | Wisconsin |
| Coleman County Telephone Cooperative | Texas |
| Colorado Valley Communications | Texas |
| Colorado Wireless Exchange Cooperative | Colorado |
| Communications Access Cooperative | Oregon |
| Coon Valley Cooperative Telephone | Iowa |
| Cooperative Light, Power and Communication | Minnesota |
| Cooperative Telephone Company | Iowa |
| Cooperative Telephone Exchange | Iowa |
| Copper Valley Telephone Cooperative | Alaska |
| Cordova Telephone Cooperative | Alaska |
| Craw-Kan Telephone Cooperative | Kansas |
| Cumby Telephone Cooperative | Texas |
| Custer Telephone Cooperative | Idaho |
| Cyberpine Cooperative | New Hampshire |
| Dakota Central Telecommunication Cooperative | North Dakota |
| DeKalb Telephone Cooperative (DTC) | Tennessee |
| Dell Telephone Cooperative | Texas & New Mexico |
| Dickey Rural Telephone Cooperative | North Dakota |
| Dunkerton Telephone Cooperative | Iowa |
| Duo County Telephone Cooperative | Kentucky |
| East Buchanan Telephone Cooperative | Iowa |
| Eastern Slope Rural Telephone Association | Colorado |
| Eastex Telephone Cooperative | Texas |
| Endeavor Communications (Clay County Rural Telephone Cooperative) | Indiana |
| Egyptian Telephone Cooperative | Illinois |
| Ellsworth Cooperative Telephone Association | Iowa |
| Emily Cooperative Telephone Company | Minnesota |
| Etex Telephone Cooperative | Texas |
| Farmers & Merchants Mutual Telephone Company | Iowa |
| Farmers Telecommunications Cooperative | Alabama |
| Farmers Cooperative Telephone Company (Dysart) | Iowa |
| Farmers Mutual Cooperative Telephone Company (Harlan) | Iowa |
| Farmers Mutual Cooperative Telephone Company (Moulton) | Iowa |
| Farmers Mutual Telephone Cooperative (Shellsburg) | Iowa |
| Farmers Mutual Telephone Company (Stanton) | Iowa |
| Farmers Mutual Telephone Company (Fruitland) | Idaho |
| Farmers Mutual Telephone (Jesup) | Iowa |
| Farmers Telephone Cooperative | South Carolina |
| Federated Telephone Cooperative | Minnesota |
| Five Area Telephone Cooperative | Texas |
| Fremont Communications (née FairPoint Communications) | Idaho |
| Gardonville Cooperative Telephone Association | Minnesota |
| Golden West Telecommunications Cooperative | South Dakota |
| Grand Mound Cooperative Telephone | Iowa |
| GRM Networks | Iowa & Missouri |
| Griswold Cooperative Telephone Company | Iowa |
| Guadalupe Valley Telephone Cooperative | Texas |
| Halstad Telephone Company | North Dakota & Minnesota |
| Hamilton County Telephone Co-op | Illinois |
| Hardy Telecommunications | West Virginia |
| Heart of Iowa Communications Cooperative | Iowa |
| Hemingford Cooperative Telephone Company | Nebraska |
| Hershey Cooperative Telephone Company | Nebraska |
| Highland Telephone Cooperative | Kentucky & Tennessee |
| Highland Telephone Cooperative (Virginia) | Virginia |
| Hill Country Telephone Cooperative | Texas |
| Horry Telephone Cooperative | South Carolina |
| Huxley Communications Cooperative | Iowa |
| InterBel Telephone Cooperative | Montana |
| Interstate Telecommunications Cooperative | Minnesota & South Dakota |
| James Valley Cooperative Telephone Company | South Dakota |
| Kalona Cooperative Telephone Company | Iowa |
| Kingdom Telephone Company | Missouri |
| La Jicarita Rural Telephone Cooperative | New Mexico |
| Lakeland Communications (née Milltown Mutual Telephone Company) | Wisconsin |
| Lavalle Telephone Cooperative | Wisconsin |
| Leaco Rural Telephone Cooperative | New Mexico |
| Lehigh Valley Cooperative Telephone Association | Iowa |
| Lismore Cooperative Telephone Company | Minnesota |
| Logan Telephone Cooperative | Kentucky |
| Lone Rock Cooperative Telephone Company | Iowa |
| Mabel Cooperative Telephone Company | Iowa |
| Marquette Adams Telephone Cooperative | Wisconsin |
| Martelle Communications Co-op | Iowa |
| Matanuska Telephone Association | Alaska |
| McCook Cooperative Telephone Company | South Dakota |
| McDonough Telephone Cooperative | Illinois |
| Mid Century Telephone Cooperative | Illinois |
| Mid-Plains Rural Telephone Cooperative | Texas |
| Mid Rivers Telephone Cooperative | Montana |
| Miles Cooperative Telephone Association | Iowa |
| Mille Lacs Energy Cooperative | Minnesota |
| Mon-cre Telephone Cooperative | Alabama |
| Monitor Cooperative Telephone Company | Oregon |
| Montrose Mutual Telephone Company | Illinois |
| Mosaic Telecom (Chibardun Telephone Cooperative) | Wisconsin |
| Mountain Rural Telephone Cooperative | Kentucky |
| Mud Lake Telephone Cooperative | Idaho |
| Mulberry Cooperative Telephone | Indiana |
| Mutual Telephone Company (Morning Sun) | Iowa |
| Mutual Telephone Company (Little River) | Kansas |
| Nelson Telephone Cooperative | Wisconsin |
| Nemont Telephone Cooperative | Montana |
| NineStar Connect (née Hancock Telecom) | Indiana |
| North English Cooperative Telephone Company | Iowa |
| New Hope Telephone Cooperative | Alabama |
| New Hope Telephone Cooperative | Virginia |
| North Central Telephone Cooperative | Tennessee |
| Northeast Service Cooperative | Minnesota |
| Northern Telephone Cooperative | Montana |
| Northwest Communications Cooperative | North Dakota |
| Northwest Telephone Cooperative Association | Iowa |
| Norvado (née Chequamegon Telephone Cooperative) | Wisconsin |
| Nushagak Electric & Telephone Cooperative | Alaska |
| Onslow Cooperative Telephone Association | Iowa |
| Oran Mutual Telephone Company | Iowa |
| Oregon Farmers Mutual Telephone Company | Missouri |
| Ottoville Mutual Telephone Company | Ohio |
| OTZ Telephone Cooperative | Alaska |
| Palmer Mutual Telephone Company | Iowa |
| Palmetto Rural Telephone Cooperative | South Carolina |
| Palo Cooperative Telephone Association | Iowa |
| Panhandle Telephone Cooperative | Oklahoma & Texas |
| Panora Communications Cooperative | Iowa |
| Partner Communications Cooperative | Iowa |
| Paul Bunyan Communications | Minnesota |
| Peetz Cooperative Telephone Company | Colorado |
| Pembroke Telephone Cooperative | Virginia |
| Peñasco Valley Telephone Cooperative | New Mexico |
| Peoples Rural Telephone Cooperative | Kentucky |
| Peoples Telephone Cooperative | Texas |
| Perry-Spencer Rural Telephone Cooperative | Indiana |
| Piedmont Rural Telephone Cooperative (PRTC) | South Carolina |
| Pineland Telephone Cooperative | Georgia |
| Pioneer Telephone Cooperative | Oklahoma |
| Pioneer Telephone Cooperative | Oregon |
| Plains Cooperative Telephone Association | Colorado |
| Planters Rural Telephone Cooperative | Georgia |
| Plateau Telephone Cooperative | New Mexico |
| Project Mutual Telephone Cooperative | Idaho |
| Poka Lambro Telephone Cooperative | Texas |
| Pulaski White Rural Telephone Cooperative | Indiana |
| Randolph Telephone Membership Corporation | North Carolina |
| Range Telephone Cooperative | Montana |
| Reservation Telephone Cooperative | North Dakota |
| Richland-Grant Telephone Cooperative | Wisconsin |
| River Valley Telecommunications Coop | Iowa |
| Roberts County Telephone Cooperative | South Dakota |
| Rockwell Cooperative | Iowa |
| Roggen Telephone Cooperative Company | Colorado |
| RTC Communications (Daviess-Martin Rural Telephone) | Indiana |
| Sac County Mutual Telephone Company | Iowa |
| Sandhill Telephone Cooperative | South Carolina |
| Santa Rosa Telephone Cooperative | Oklahoma & Texas |
| Santel Communications Cooperative | South Dakota |
| Scio Mutual Telephone | Oregon |
| Scott County Telephone Cooperative | Virginia |
| SEI Communications (Southeastern Indiana Rural Telephone Cooperative) | Indiana |
| Sherwood Mutual Telephone Association | Ohio |
| SkyLine Membership Corporation | North Carolina |
| South Central Rural Telephone Cooperative | Kentucky |
| South Central Utah Telephone Association | Utah |
| Southern Vermont Broadband Cooperative | Vermont |
| South Plains Telephone Cooperative | Texas |
| South Slope Cooperative Communications | Iowa |
| Southwest Arkansas Telephone Cooperative | Arkansas & Texas |
| Springville Cooperative Telephone Association | Iowa |
| SRT Communications | North Dakota |
| Star Telephone Membership Corporation | North Carolina |
| Stayton Cooperative Telephone Company | Oregon |
| St Paul Cooperative Telephone Association | Oregon |
| Stratford Mutual Telephone | Iowa |
| S&T Telephone Cooperative | Kansas |
| Superior Telephone Cooperative | Iowa |
| Surry Telephone Membership Corporation | North Carolina |
| Tamworth Wireless Cooperative | New Hampshire |
| Taylor Telephone Cooperative | Texas |
| Tele-Media Solutions (Washington County Rural Telephone Cooperative) | Indiana |
| Terril Telephone Cooperative | Iowa |
| Triangle Telephone Cooperative | Montana |
| Tri-County Communications Cooperative | Wisconsin |
| Tri-County Telecom | North Carolina |
| Twin Lakes Telephone Cooperative Corporation | Tennessee |
| United Communications (United Telephone Mutual Aid Corporation) | North Dakota |
| Valley Telecommunications Cooperative | South Dakota |
| Valley Telephone Cooperative | Arizona |
| Valley Telephone Cooperative (VTX1) | Texas |
| Van Horne Cooperative Telephone Company | Iowa |
| Venture Communications Cooperative | South Dakota |
| Vernon Communications Cooperative | Wisconsin |
| Wabash Telephone Cooperative | Illinois |
| Wabash Mutual Telephone Company | Ohio |
| Webster-Calhoun Cooperative Telephone Association | Iowa |
| Wellman Cooperative Telephone Association | Iowa |
| West Carolina Rural Telephone Cooperative | South Carolina |
| WesTex Telephone Cooperative | Texas |
| West River Cooperative Telephone Company | South Dakota |
| West River Telecommunications Cooperative | North Dakota & South Dakota |
| West Texas Rural Telephone Cooperative | Texas |
| West Wisconsin Telcom Cooperative | Wisconsin |
| Wilkes Telecommunications (Wilkes Telephone Membership Corporation) | North Carolina |
| Winnebago Cooperative Telecom Association | Iowa |
| Woolstock Mutual Telephone | Iowa |
| WK&T (West Kentucky Rural Telephone Cooperative) | Kentucky & Tennessee |
| XIT Rural Telephone Cooperative | Texas |
| Zirrus (Yadkin Valley Telephone) | North Carolina |
