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  2. List of United States wireless communications service ...

    All 4 wireless providers also maintain legacy networks; of these, AT&T and T-Mobile use GSM and 3G UMTS (mostly converted to 4G HSPA+), while Verizon, Sprint (now a subsidiary of T-Mobile), and U.S. Cellular use cdmaOne/EV-DO/1xRTT. However, Verizon is in the process of shutting down their non-LTE networks.

  3. Tello Mobile - Wikipedia

    Tello Mobile is an MVNO (Mobile Virtual Network Operator) that uses the T-Mobile network to provide talk, text, and data to its customers. Tello originally used the Sprint network, but transitioned to the T-Mobile network after the T-Mobile and Sprint merger. The company was founded in 2016. The headquarters is located in Atlanta, Georgia.

  4. Assurance Wireless - Wikipedia

    Since April 2020, the Assurance Wireless brand has been under the T-Mobile family. This was the result of the merger of Sprint Corporation and T-Mobile US was officially completed, and after Virgin Mobile USA was officially shut down and folded into Boost Mobile. An official statement was sent to all customers July 14, 2020 stating that all ...

  5. TracFone Wireless - Wikipedia

    TracFone Wireless, Inc. (TFWI) is an American prepaid, no-contract mobile phone provider. TFWI is a subsidiary of Verizon Communications , [1] and offers products and services under several brands. It operates as a mobile virtual network operator (MVNO), holding agreements with the three largest United States wireless network operators to ...

  6. GSM - Wikipedia

    The Global System for Mobile Communications (GSM) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation digital cellular networks used by mobile devices such as mobile phones and tablets.

  7. Motorola StarTAC - Wikipedia

    The Motorola StarTAC, first released on January 3, 1996, is often assumed to be the first ever clamshell (flip) mobile phone. Technically, however, NEC had been releasing flip phones on NTT Docomo's PDC Mova network long before 1996, namely the TZ-804 and TZ-1501, both respectively launched in 1991 and late 1994.

  8. Text messaging - Wikipedia

    To convince more customers to buy unlimited text messaging plans, some major cellphone providers have increased the price to send and receive text messages from $.15 to $.20 per message. This is over $1,300 per megabyte. Many providers offer unlimited plans, which can result in a lower rate per text, given sufficient volume. Japan

  9. O2 (UK) - Wikipedia

    Future plans included manufacturing Near Field Communication (NFC) technology in mobile phones in the United Kingdom. O2 and Vodafone signed a deal in June 2012 which will see the two companies 'pool' their network technology, creating a single national grid of 18,500 transmitter sites. Both networks will continue to carry their own independent ...