Provider certification record

3 Rivers Telephone Cooperative, Inc. d/b/a 3 Rivers Communications

Listed

Identity

Legal business name: 3 Rivers Telephone Cooperative, Inc. d/b/a 3 Rivers Communications
Doing-business-as: 3 Rivers Communications
Foreign Voice Service Provider: No
Business address: PO Box 429, 406 2nd Avenue South, Fairfield MT 59436
Filing contact: Melvin Ewing
Chief Technology Officer · Network Operations
rmdcontact@3rivers.coop
(406) 467-2535
PO Box 429 406 2nd Avenue South Fairfield MT 59436
United States of America
Principals, Affiliates, Subsidiaries, and Parent Companies: 3 Rivers is a member-owned telephone cooperative. 3 Rivers has a Board of Trustees elected by cooperative members, but these trustees are not employees of 3 Rivers. All operations of the Cooperative are managed by 3 Rivers employees, led by our CEO - Timothy Riley, and CTO - Melvin Ewing. 3 Rivers has no parent company or subsidiaries.

Provider role(s): Voice service provider
STIR/SHAKEN implementation: Role Implementation
Voice service provider Partial
Overall Partial
Exemption rules: 3 Rivers is eligible for the continuing extension of the STIR SHAKEN implementation deadline as a small voice service provider, as defined in §64.6304 (a)(2), that has non-IP portions within its network §64.6304(d). 3 Rivers provides local service to fewer than 100,000 voice subscriber lines. Some 3 Rivers customers are served on the non-IP portions of the 3 Rivers network which relies on technology that cannot initiate, maintain, carry, process, and terminate SIP calls. In addition, per §64.6303(a)(1), 3 Rivers is ready to upgrade its entire network to allow for the initiation, maintenance, and termination of SIP calls and fully implement the STIR/SHAKEN framework throughout its network. However, the 3 Rivers non-IP network is connected to carriers (via TDM) that do not support IP connectivity; therefore, 3 Rivers cannot upgrade its Non-IP network (TDM network) to IP connectivity. Per §64.6303(a)(2), 3 Rivers can provide the Commission with documented proof that it is participating as a member of a working group, industry standards group, or consortium that is working to develop a non-internet Protocol caller identification authentication solution, or actively testing such a solution.

Role	Implementation
Voice service provider	Partial
Overall	Partial

Date	Event	Detail / diff
2026-07-06	New	Initial certification filed and added to database.