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Mobile dial code – Mobile Dial Code; Pat Fleet – Prompt voice for most U.S. AT&T implementations of VSC features; Public switched telephone network – Aggregate of all public telephone networks; Short code – Short telephone numbers for voice, text and MMS services from mobile phones
The most commonly known examples are emergency telephone numbers such as 9-9-9, 1-1-2 and 9-1-1.Other services may also be available through abbreviated dialing numbers, such as the other of the eight N11 codes of the North American Numbering Plan (NANP) besides 9-1-1. [1]
Standard, interoperable short codes in the U.S. are five or six digits long, [28] never start with 1, and only work in the U.S. [29] They are leased by the short code program's registry service provider iconectiv, under a deal with the Common Short Code Administration [30] and CTIA. [31]
AT&T was founded as Bell Telephone Company by Alexander Graham Bell, Thomas Watson and Gardiner Greene Hubbard after Bell's patenting of the telephone in 1875. [21] By 1881, Bell Telephone Company had become the American Bell Telephone Company. [22]
This list contains the mobile country codes and mobile network codes for networks with country codes between 300 and 399, inclusively – a region that covers North America and the Caribbean. Guam and the Northern Mariana Islands are included in this region as parts of the United States.
Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the four major cellular carriers in the country—AT&T Mobility, Boost Mobile, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.
To determine the SMS gateway domain, e.g., txt.att.net, may require research - but most users know who their carrier is. The telephone number in this example for a US number is expressed as ten (10) digits, without the country code (1) and without dashes or other separator characters when composing the email address.
AT&T Basking Ridge "Pagoda" campus renditions for office complex, 1972 AT&T 550 Madison Ave building no longer corporate headquarters after 1992 (pictured 2021) In 1978, AT&T commissioned a new building at 550 Madison Avenue. This new AT&T Building was designed by Philip Johnson and quickly became an icon of the new Postmodern architectural ...