ISP & Telecom Directory · United States

Grand River Mutual Tel. Corporation

Grand River Mutual Tel. Corporation 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.

Grand River Mutual Tel. Corporation

Incumbent LEC

Also known as: GRM Networks, Grand River Long Distance, Lathrop Long Distance

Agent for service of process: Richard Rubino, Blooston, Mordkofsky, Dickens, Duffy & Prendergast, Attn: Richard Rubino, 2120 L St NW, Suite 825, Washington, DC, 20037
Agent phone / fax: (202) 828-5519
Agent email: [email protected]
Headquarters: 1001 Kentucky Street, Princeton, MO, 64673
Customer inquiries: (800) 451-2301
Holding company: GRAND RIVER MUTUAL TELEPHONE CORPORATION
States served (2): Iowa, Missouri
FCC 499 Filer ID: 803028
Last filing: 4/1/2026

Sending a lawful request to Grand River Mutual Tel. Corporation

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 Grand River Mutual Tel. Corporation. Names and contact details are reproduced as published by the regulator.