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In the United States, both interexchange carriers (IXCs) such as Sprint, AT&T Inc., and Verizon, and Local Exchange Carriers (LECs) such as Verizon and AT&T offer toll-free services. The way that a toll-free number is handled depends on whether it is a domestic or an interexchange call.
The concepts of the NANP were devised originally during the 1940s by the American Telephone and Telegraph Company (AT&T) for the Bell System and the independent telephone companies in North America in Operator Toll Dialing.
After competitive carriers were allowed to compete with AT&T in establishing toll-free service, the three digit exchange following the 800 prefix was linked to a specific destination carrier and area code; the number itself corresponded to specific telephone switching offices and trunk groups.
If you'd like to report an AT&T outage, you can contact AT&T's customer service. The AT&T contact number is 800-331-0500, or you can simply dial 611 if you have an AT&T cell phone.
Phone support is available for account management and password reset help, Mon-Fri: 8am-12am ET; Sat: 8am-10pm ET. For additional hours of operation for different services visit our support...
Toll-free directory assistance. In the U.S., directory assistance for companies with toll-free "800 numbers" (with area codes 800, 833, 844, 855, 866, 877, and 888) was available from toll-free directory assistance, reachable by dialing 1-800-555-1212, for many decades until it was discontinued in 2020.
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