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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 ...
Cingular became wholly owned by the new AT&T in December 2006 as a result of the new AT&T's acquisition of BellSouth. After the merger, Cingular was renamed AT&T Mobility in late 2006 and remained the largest wireless carrier until 2009 when Verizon Wireless acquired Alltel to become the largest wireless service provider by a number of subscribers.
This page was last edited on 8 March 2022, at 16:29 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Pacific Bell Wireless is legally known as Pacific Bell Wireless, LLC d/b/a Cingular Wireless. [ citation needed ] It was founded in the mid-1990s, initially named Pacific Bell Mobile Services, as a means for Pacific Telesis to capitalize on the wireless market it had lost when it spun off AirTouch .
A graduate of West Texas State University in Canyon, Texas, Sigman began his career with Southwestern Bell Telephone as a stockman in Hereford, Texas, in 1965.. A long-time wireless industry leader, Sigman held leadership positions at SBC Communications, where he helped start SBC's wireless business in the mid-1980s, managed its expansion into one of the largest wireless businesses in the ...
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.
It continued to operate as Southwestern Bell Mobile Systems until 2000, when SBC Communications and BellSouth combined their wireless operations into a single company, Cingular Wireless. Southwestern Bell Mobile Systems' assets were then transferred to a Cingular as a limited liability company named Cingular Southwestern Bell Mobile Systems, LLC .
The ever-changing world of telecommunications claimed another major wireless name in 2007. Cingular Wireless was purchased by AT&T, as part of AT&T's acquisition of BellSouth in 2006. The Cingular ...