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2. AT&T Mobility - Wikipedia

   en.wikipedia.org/wiki/AT&T_Mobility

   However, the second Android phone AT&T released was the HTC Aria [80] [81] [82] which was announced on June 14, 2010 and released on June 20, 2010. The Samsung Captivate, which is part of the Galaxy S family, was released on AT&T's network on July 18, 2010. In addition to devices released on AT&T were a line of handsets manufactured by Motorola.

3. List of mobile virtual network operators in the United States

   en.wikipedia.org/wiki/List_of_mobile_virtual...

   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.

4. 3G - Wikipedia

   en.wikipedia.org/wiki/3G

   AT&T Mobility was also a true 3G UMTS network, having completed its upgrade of the 3G network to HSUPA. The first commercial United Kingdom 3G network was started by Hutchison Telecom which was originally behind Orange S.A. [18] In 2003, it announced first commercial third generation or 3G mobile phone network in the UK.

5. EXPLAINER: Will burglar alarms still work after 3G shutdown?

   www.aol.com/finance/explainer-burglar-alarms...

   People with older phones that aren't compatible with 4G will have to upgrade; once 3G shuts down, those phones won't work for calls or texting. AT&T says it has reached out to offer its customers ...

6. AT&T MicroCell brings more bars, but at a cost - AOL

   www.aol.com/news/2010-05-12-atandt-microcell...

   AT&T has an answer, but it is a bit pricey. It's called the AT&T 3G MicroCell. It's not a cellphone repeater, but instead a device that plugs into your router and then gets you voice and data just ...

7. Cellular frequencies in the United States - Wikipedia

   en.wikipedia.org/wiki/Cellular_frequencies_in...

   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.