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  2. AT&T Mobility - Wikipedia

    en.wikipedia.org/wiki/AT&T_Mobility

    AT&T Mobility, LLC, also known as AT&T Wireless and marketed as simply AT&T, is an American telecommunications company. It is a wholly owned subsidiary of AT&T Inc. and provides wireless services in the United States. AT&T Mobility is the second largest wireless carrier in the United States, with 114.5 million subscribers as of March 31, 2024. [3]

  3. 3G - Wikipedia

    en.wikipedia.org/wiki/3G

    3G is the third generation of wireless mobile telecommunications technology. It is the upgrade to 2G, 2.5G, GPRS and 2.75G Enhanced Data Rates for GSM Evolution networks, offering faster data transfer, and better voice quality. [1] This network was superseded by 4G, and later by 5G. This network is based on a set of standards used for mobile ...

  4. Cellular frequencies in the United States - Wikipedia

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

    There are 51 MTAs, 493 BTAs and 175 EAs in the United States. The Advanced Wireless Services (AWS) bands, auctioned in the summer of 2006, were for 1,710–1,755 MHz, and 2,110–2,155 MHz. The spectrum was divided into blocks: A blocks were for Cellular Market Areas, based on existing cellular (1G) licenses, and were 2 × 10 MHz.

  5. iPhone 3GS - Wikipedia

    en.wikipedia.org/wiki/IPhone_3GS

    iPhone. The iPhone 3GS, stylised as iPhone 3G🅂 [a] is a smartphone that was designed, developed, and marketed by Apple Inc. It is the third generation iPhone and the successor to the iPhone 3G. It was unveiled on June 8, 2009 [6] at the WWDC 2009 which took place at the Moscone Center in San Francisco.

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

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

    AT&T is scheduled to be the first carrier to shut down its 3G network on Feb. 22. T-Mobile will shut down its 3G network by summer and Verizon in December. The home-alarm industry has asked the ...

  7. List of wireless network technologies - Wikipedia

    en.wikipedia.org/wiki/List_of_wireless_network...

    CDMA2000 is a family of 3G mobile technology standards for sending voice, data, and signaling data between mobile phones and cell sites. It is a backwards-compatible successor to second-generation cdmaOne (IS-95) set of standards and used especially in North America and South Korea, China, Japan, Australia and New Zealand.

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