ISP & Telecom Directory · United States

AT&T Enterprises, LLC

AT&T Enterprises, LLC is an Interexchange Carrier 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.

AT&T Enterprises, LLC

Interexchange Carrier

Also known as: AT&T Corp., ACC Business, AT&T Wholesale, AT&T Business Solutions, AT&T Advanced Solutions, AT&T Diversified Group, AT&T Mobile and Business Solutions

Agent for service of process: Glenis McKoy, AT&T Services, Inc, 1120 20th Street, NW, Suite 1000, Washington, DC, 20036
Agent phone / fax: (202) 457-3852
Agent email: [email protected]
Headquarters: 208 S Akard ST, Dallas, TX, 75202
Customer inquiries: (800) 288-2020
Holding company: AT&T, Inc.
States served (59): Alabama, Alaska, American Samoa, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Guam, Hawaii, Idaho, Illinois, Indiana, Iowa, Johnston Atoll, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Midway Atoll, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Northern Mariana Islands, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, US Virgin Islands, Vermont, Virginia, Wake Island, Washington, West Virginia, Wisconsin, Wyoming
FCC 499 Filer ID: 806172
Last filing: 4/1/2026

Sending a lawful request to AT&T Enterprises, 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.

More United States providers starting with A

All United States providers starting with A · United States directory · All countries

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 AT&T Enterprises, LLC. Names and contact details are reproduced as published by the regulator.