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Cingular, the predecessor to AT&T, supported legacy D-AMPS/TDMA and analog wireless networks. In March 2006, Cingular announced that these networks would be shut down by February 2008. As of March 31, 2007, Cingular ended TDMA supported for GoPhone (pre-paid) customers. On July 15, 2007, AT&T TDMA on 1900 MHz was retired, while TDMA on 850 MHz ...
The Cingular brand was officially wiped off Cingular Wireless was purchased by AT&T, as part of AT&T's acquisition of BellSouth in 2006. 2007 Departures: 'Cingular' dropped as AT&T absorbs company
Cellular Communications of Puerto Rico, Inc (Cellular One Puerto Rico, also serves U.S. Virgin Islands) — Acquired by SBC Communications and Telmex for $814 million in 1999, [20] [21] switched to the Cingular brand when SBC and BellSouth formed Cingular.
Professional wireless microphones used the 700 MHz band until 2010 when they were made illegal, but equipment still exists in use that may interfere with 3G and 4G technologies. [ 10 ] Due to immediate adjacency to channel 51 lower 700 MHz A block license holders were prohibited to use it within channel 51 station service areas.
Originally BellSouth Mobility DCS, then Cingular Wireless, [84] then Aio Wireless, then rebranded as the new GSM Cricket Wireless: 310: 160: T-Mobile: T-Mobile US: Not operational: GSM 1900 [84] GSM shut down Feb 2025 [144] 310: 170: AT&T: AT&T Mobility: Operational: GSM 1900: Formerly Pacific Bell Wireless, then Cingular Wireless [84] CA/NV ...
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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: Unknown: December 2019
The legal entity "AT&T Wireless Services, Inc." was renamed "New Cingular Wireless Services, Inc." [1] In late 2005, SBC (the majority partner in Cingular) acquired the original AT&T, and rebranded as "the new AT&T". Cingular became wholly owned by the new AT&T in December 2006 as a result of the new AT&T's acquisition of BellSouth.