ISP & Telecom Directory · United States

Citizens Telecommunications Co. of Idaho

Citizens Telecommunications Co. of Idaho is an Incumbent LEC in United States, listed in the FCC register. The contact details below are reproduced from that register as of August 2026; verify against the live register before serving legal process.

Citizens Telecommunications Co. of Idaho

Incumbent LEC

Also known as: Citizens Telecommunications Company of Idaho, Citizens Communications of Idaho, Frontier Communications of Idaho, Citizens Communications Company of Idaho, Ziply Fiber

Agent for service of process: Corporation Service Company, 1090 Vermont Avenue NW, Washington, DC, 20005
Agent phone / fax: (800) 927-9800
Agent email: [email protected]
Headquarters: 135 Lake Street S, Ste 155, Kirkland, WA, 98033
Customer inquiries: (877) 462-7320
Holding company: Northwest Fiber LLC
States served (1): Idaho
FCC 499 Filer ID: 803994
Last filing: 4/1/2026

Sending a lawful request to Citizens Telecommunications Co. of Idaho

Serve subpoenas, court orders and preservation letters on the agent for service of process named below; registered-agent firms forward to the company's legal team. Requests from outside the United States go through the MLAT or CLOUD Act route. For the procedure and legal basis in United States, see the investigator guides; for platform and app data requests, the LERS portal guides.

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Source: FCC Form 499 Filer Database. Independent reference for study and investigative use; Ministry of Cyber Affairs is not a government body and does not represent Citizens Telecommunications Co. of Idaho. Names and contact details are reproduced as published by the regulator.