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  2. 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.

  3. Charter Communications - Wikipedia

    en.wikipedia.org/wiki/Charter_Communications

    Charter Spectrum service logo. Charter Communications, Inc., is an American telecommunications and mass media company with services branded as Spectrum.With over 32 million customers in 41 states, [5] [1] it is the largest cable operator in the United States by subscribers, [6] just ahead of Comcast, and the largest pay TV operator ahead of Comcast and AT&T. [7]

  4. Spectrum (brand) - Wikipedia

    en.wikipedia.org/wiki/Spectrum_(brand)

    On June 30, 2018, Charter launched Spectrum Mobile, [25] a mobile virtual network operator service. Spectrum utilizes their service area's Wi-Fi network for extended network coverage, while Verizon Wireless provides the network Spectrum Mobile utilizes for mobile service, both a traditional 4G network and newer 5G network.

  5. 5G NR frequency bands - Wikipedia

    en.wikipedia.org/wiki/5G_NR_frequency_bands

    Frequency bands for 5G New Radio (5G NR), which is the air interface or radio access technology of the 5G mobile networks, are separated into two different frequency ranges. First there is Frequency Range 1 (FR1), [ 1] which includes sub-6 GHz frequency bands, some of which are traditionally used by previous standards, but has been extended to ...

  6. Martin Cooper (inventor) - Wikipedia

    en.wikipedia.org/wiki/Martin_Cooper_(inventor)

    Martin Cooper (born December 26, 1928) is an American engineer. He is a pioneer in the wireless communications industry, especially in radio spectrum management, with eleven patents in the field. [ 2][ 3] On April 3, 1973, he placed the first public call from a handheld portable cell phone while working at Motorola, from a Manhattan sidewalk to ...

  7. List of mobile network operators in the United States

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

    AT&T, T-Mobile, Verizon, Boost Mobile, and UScellular also sell SIM cards through their retail channels, both in-store and online. The top five wireless providers operate nationwide wireless networks which cover most of the population in the United States, while smaller carriers provide native network coverage across selected regions of the ...

  8. United States Cellular Corporation - Wikipedia

    en.wikipedia.org/wiki/United_States_Cellular...

    Spectrum bandwidth includes, 5*5, or 10*10 MHz on band 12 700 MHz 5*5 MHz on band 5 850 MHz 5*5, or 10*10 MHz on band 4 AWS 1. U.S. Cellular also has 5Mhz or 10Mhz of spectrum on Band 66 (AWS-3) in some markets. The company began VoLTE trials during 2016, launched its first market with VoLTE during the first quarter of 2017. [21]

  9. Cellular network - Wikipedia

    en.wikipedia.org/wiki/Cellular_network

    The most common example of a cellular network is a mobile phone (cell phone) network. A mobile phone is a portable telephone which receives or makes calls through a cell site (base station) or transmitting tower. Radio waves are used to transfer signals to and from the cell phone. Modern mobile phone networks use cells because radio frequencies ...