- Agent for service of process
- Harold Mordkofsky, Blooston, Mordkofsky, Dickens, 2120 L Street, NW Suite 300, Washington, DC, 20037-1527
- Agent phone / fax
- (202) 659-0830 · fax (202) 828-5568
- Agent email
- [email protected]
- Headquarters
- PO Box 324, Challis, ID, 83226-0324
- Customer inquiries
- (208) 879-2281
- Holding company
- Custer Telephone Cooperative Inc.
- States served (1)
- Idaho
- FCC 499 Filer ID
- 828277
- Last filing
- 4/1/2026
ISP & Telecom Directory · United States
Custer Telephone Broadband Services LLC
Custer Telephone Broadband Services LLC is a CAP/CLEC 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.
Ministry of Cyber Affairs is not Custer Telephone Broadband Services LLC. We are an independent news site and this page only reproduces the public register, so for service, bills or payments contact the company directly. Is this your company? Request a correction.
Sending a lawful request to Custer Telephone Broadband Services LLC
The agent below is the contact the company designated to the FCC. Before serving a subpoena, court order or preservation letter, check the provider's own law-enforcement or legal-process page and confirm which address it accepts. 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 Custer Telephone Broadband Services LLC. Names and contact details are reproduced as published by the regulator.