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ISP & Telecom Directory · United States

Block Line Systems, LLC

Block Line Systems, LLC is a Toll Reseller 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.

Block Line Systems, LLC

Toll Reseller
Agent for service of process
CT Corporation Systems, 1015 15th Street NW, Suite 1000, Washington, DC, 20005
Agent phone / fax
(202) 572-3111 · fax (202) 572-9633
Headquarters
2700 Oregon Road, Northwood, OH, 43619
Customer inquiries
(888) 808-6111
Holding company
—
States served (50)
Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
FCC 499 Filer ID
830641
Last filing
4/1/2026

Sending a lawful request to Block Line Systems, LLC

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 Block Line Systems, LLC. Names and contact details are reproduced as published by the regulator.