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  2. Comparison of mobile phone standards - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_mobile_phone...

    Unlimited cell size, low transmitter power permits large cells Very low density Soft No EVDO / Yes SVDO [2] 3G: W-CDMA: UMTS (3GSM) Digital: 2001 Worldwide SIM card: None Smaller cells and lower indoors coverage on 2100 MHz; equivalent coverage indoors and superior range to GSM on 850/900 MHz. Very low density Soft Yes [3] 4G: OFDMA: LTE ...

  3. GSM frequency bands - Wikipedia

    en.wikipedia.org/wiki/GSM_frequency_bands

    For example, one version of the Nokia 6340i GAIT phone sold in North America can operate on GSM-1900, GSM-850 and legacy TDMA-1900, TDMA-800, and AMPS-800, making it both multi-mode and multi-band. As a more recent example the Apple iPhone 5 and iPhone 4S support quad-band GSM at 850/900/1800/1900 MHz, quad-band UMTS/HSDPA/HSUPA at 850/900/1900 ...

  4. Cellular frequencies in the United States - Wikipedia

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

    Cellular frequencies in the United States are allocated by the US Federal Communications Commission.As cellular mobile telephone technology has evolved over time, periodically bands of frequencies are reassigned from other radio services.

  5. Cellular frequencies - Wikipedia

    en.wikipedia.org/wiki/Cellular_frequencies

    In Russia and some other countries, local carriers received licenses for 450 MHz frequency to provide CDMA mobile coverage area. Many GSM phones support three bands (900/1,800/1,900 MHz or 850/1,800/1,900 MHz) or four bands (850/900/1,800/1,900 MHz), and are usually referred to as tri-band and quad-band phones, or world phones; with such a ...

  6. List of mobile network operators in the United States

    en.wikipedia.org/wiki/List_of_mobile_network...

    Four of the top five wireless providers have all standardized on 4G LTE and 5G NR as their wireless communication standards, whereas Boost Mobile uses only 5G NR.Of which, LTE has been deployed across their entire coverage area; however, the LTE bands used by each provider remain largely incompatible.

  7. List of mobile network operators of the Americas - Wikipedia

    en.wikipedia.org/wiki/List_of_mobile_network...

    The country has 4.96 Million subscribers in total, or 123 active mobile phones per 100 inhabitants according to ASEP. [137] (December 2016) December 2016) Rank

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