UDP is affiliated with the following industry associations:

Alliance for Telecommunications Industry Solutions
(ATIS)

COMPTEL

National Exchange Carrier Association (NECA)

National Telecommunications Cooperative Association (NTCA)

Organization for the Promotion and Advancement of Small
Telecommunications Companies (OPASTCO)

Arizona - New Mexico Telecommunications Association

Arkansas Telecommunications Association

Carolina-Virginias Telephone Membership Association

Georgia Telephone Association

Illinois Telecommunications Association

Iowa Telecommunications Association

Louisiana Telecommunications Association

Missouri Telecommunications Industry Association

New York State Telecommunications Association

North Carolina Telecommunications Industry Association

North Dakota Association of Telecommunications Cooperatives

Oklahoma Telephone Association

Pennsylvania Telephone Association

South Carolina Telecommunications Association

Texas Telephone Association

Texas Statewide Telephone Cooperative, Inc. (TSTCI)