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Acquired by Verizon Wireless and AT&T Mobility. [39] AT&T Wireless Services: GSM: EDGE: 22: October 2004: Acquired by Cingular Wireless, which later rebranded to AT&T Mobility. [40] Big Sky Mobile: GSM: EDGE: Unknown: 2017: Sold spectrum licenses to AT&T and T-Mobile and exited the business. [41] Blaze Wireless: GSM, UMTS: EDGE, HSPA+, LTE ...
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.
San Luis Obispo County, California (SLO Cellular) — Sold to AT&T, service ends January 17, 2011. Long Lines Wireless (Formerly Cellular One of Great Lakes of Iowa) - Acquired by AT&T July 2013; Edge Wireless (AT&T Affiliate merged into AT&T in April 2008). Edge Wireless served Northern California, Southern Oregon, Southeastern and ...
The PTCRB was established in 1997 as the certification forum by select North American cellular operators. Now a pseudo-acronym, it no longer stands for its original meaning of the PCS Type Certification Review Board (then named after the GSM1900 MHz band in North America).
The Type Allocation Code (TAC) is the initial eight-digit portion of the 15-digit IMEI and 16-digit IMEISV codes used to uniquely identify wireless devices.. The Type Allocation Code identifies a particular model (and often revision) of wireless telephone for use on a GSM, UMTS, LTE, 5G NR, iDEN, Iridium or other IMEI-employing wireless network.
Defunct mobile phone companies of the United States (2 C, 32 P) I. ... AT&T Communications (1984–2010) AT&T Corporation; Atlantic and Pacific Telegraph Company;
AT&T, the nation’s largest carrier, has more than 240 million subscribers. More than 70,000 outages were reported after 8 a.m. ET, according to Downdetector , a website that detects outages.
It was not included in the Bell System breakup of 1984 because the original AT&T held only a minority stake in that company. Verizon, in addition to its role as a RBOC in its areas retained in the East, serves former GTE areas in Pennsylvania and Virginia. Verizon formerly served ex-GTE areas in parts of California, Florida and Texas before ...
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