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Local number portability (LNP) for fixed lines, and full mobile number portability (FMNP) for mobile phone lines, refers to the ability of a "customer of record" of an existing fixed-line or mobile telephone number assigned by a local exchange carrier (LEC) to reassign the number to another carrier ("service provider portability"), move it to another location ("geographic portability"), or ...
Mobile number portability (MNP) allows people to keep their phone numbers when switching to a new mobile network. Moreover, it has been implemented in various ways across the globe. Moreover, it has been implemented in various ways across the globe.
The AT&T Wireless brand was retired by Cingular on April 26, 2005, six months after the close of the merger. This was per a pre-spinoff agreement with AT&T Corp. that stated that if AT&T Wireless was to be bought by a competitor, the rights to the name AT&T Wireless and the use of the AT&T name in wireless phone service would revert to AT&T Corp.
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.
In GSM networks of some US carriers, and in all mobile networks in Europe, it is possible to set a number of seconds for the phone to ring before forwarding the call. This is specified by inserting " *SC*XX " prior to the final "#" of the forwarding command, where " SC " is a service type code (11 for voice , 25 for data , 13 for fax ), and ...
A SIM swap scam (also known as port-out scam, SIM splitting, [1] simjacking, and SIM swapping) [2] is a type of account takeover fraud that generally targets a weakness in two-factor authentication and two-step verification in which the second factor or step is a text message (SMS) or call placed to a mobile telephone.
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Originally known as Cingular Wireless (a joint venture between SBC Communications and BellSouth) from 2000 to 2007, the company acquired the old AT&T Wireless in 2004; SBC later acquired the original AT&T and adopted its name. Cingular became wholly owned by AT&T in December 2006 as a result of AT&T's acquisition of BellSouth. In January 2007 ...