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  2. giffgaff - Wikipedia

    en.wikipedia.org/wiki/Giffgaff

    At launch, Giffgaff's first product was a prepaid SIM card providing all standard 2G and 3G mobile phone services and charging on a pay-as-you-go basis. Following this, Giffgaff announced bundles of minutes, texts, and data, called "goodybags".

  3. Which wireless carrier has the best coverage where you're ...

    www.aol.com/news/wireless-carrier-best-coverage...

    Want an honest assessment of whether a wireless company has decent service in a given location? Get an outside opinion. Here's where to look.

  4. List of mobile network operators in the United States

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

    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 United States while supplementing nationwide coverage through roaming agreements with other carriers.

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

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

    Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the four major cellular carriers in the country—AT&T Mobility, Boost Mobile, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.

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

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

    Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from major carriers such as AT&T Mobility, T-Mobile US, or Verizon Wireless, as well as regional carrier United States Cellular Corporation for resale. The largest operator of MVNOs is TracFone Wireless with over 25 million subscribers.

  7. List of mobile network operators - Wikipedia

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

    This is a list of the world's thirty largest terrestrial mobile phone network operators measured by number of subscriptions. Rank Country Company Main markets

  8. Cellular frequencies in the United States - Wikipedia

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

    The B block of spectrum was awarded to a local wireline carrier that provided landline telephone service in the CMA. The A block was awarded to non-wireline carriers. In 1986, the FCC allocated an additional 5 MHz of spectrum for each channel block, raising the total amount of spectrum per block to the current total of 25 MHz. [ 3 ]

  9. Coverage map - Wikipedia

    en.wikipedia.org/wiki/Coverage_map

    A coverage map may be produced to indicate the area in which a certain signal strength is delivered. [1] Even if it is 100% accurate (which it never is), a major factor on whether a signal is receivable depends very much on whether the receiving apparatus is sensitive enough to use a signal of that level.