ISP & Telecom Directory · United States

HCK Group

HCK Group is an Interconnected Voip 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.

HCK Group

Interconnected Voip

Also known as: Informity Systems

Agent for service of process: Corporation Service Company, 1156 15th St NW, Suite 605, Washington, DC, 20005
Agent phone / fax: (202) 371-8090 · fax (202) 371-1945
Agent email: [email protected]
Headquarters: 450 Skokie Blvd., Suite 401, Northbrook, IL, 60062
Customer inquiries: (800) 436-7274
Holding company: —
States served (21): Arizona, California, Connecticut, Florida, Hawaii, Illinois, Indiana, Massachusetts, Michigan, Minnesota, Missouri, New York, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, South Dakota, Tennessee, Texas, Wisconsin
FCC 499 Filer ID: 831213
Last filing: 4/1/2026

Sending a lawful request to HCK Group

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 HCK Group. Names and contact details are reproduced as published by the regulator.