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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. 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.

  4. 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 [ 1] This network was superseded by 4G, and later by 5G.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 ...

  5. History of mobile phones - Wikipedia

    en.wikipedia.org/wiki/History_of_mobile_phones

    In 1949, AT&T commercialized Mobile Telephone Service. From its start in St. Louis, Missouri, in 1946, AT&T introduced Mobile Telephone Service to one hundred towns and highway corridors by 1948. Mobile Telephone Service was a rarity with only 5,000 customers placing about 30,000 calls each week. Calls were set up manually by an operator and ...

  6. Cellular frequencies - Wikipedia

    en.wikipedia.org/wiki/Cellular_frequencies

    Cellular frequencies. Cellular frequencies are the sets of frequency ranges within the ultra high frequency band that have been assigned for cellular-compatible mobile devices, such as mobile phones, to connect to cellular networks. [ 1] Most mobile networks worldwide use portions of the radio frequency spectrum, allocated to the mobile service ...

  7. iPhone 3GS - Wikipedia

    en.wikipedia.org/wiki/IPhone_3GS

    Telephones portal. 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 [ 8 ] at the WWDC 2009 which took place at the Moscone Center in San Francisco.

  8. Cricket Wireless - Wikipedia

    en.wikipedia.org/wiki/Cricket_Wireless

    Cricket Wireless is an American prepaid mobile virtual network operator (MVNO), wholly-owned by AT&T. It provides wireless services to ten million subscribers in the United States. [ 1] Cricket Wireless was founded in March 1999 by Leap Wireless International. AT&T acquired Leap Wireless International in March 2014, and later merged Cricket ...

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

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

    Yes, on unlimited data plan, but at 4G speeds only with Facebook, and 3G speeds for all else; phone hotspot limited to 10 GB Fast Data [215] [217] Yes, 2G speeds [ 217 ] Yes, but limited to 10 GB Fast Data on unlimited data plan (up to 20 GB shared Fast Data on 20 GB plan) [ 217 ] [ 219 ]