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2. 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 ...

3. Uswitch | Wikipedia

   en.wikipedia.org/wiki/Uswitch

   uSwitch is accredited under the Ofgem Confidence Code, [10] a voluntary code of practice for online domestic price comparison services. uSwitch was involved in the formation of the Confidence Code in 2002 with Consumer Focus, which managed the code until Ofgem took over in 2013. uSwitch.com was previously accredited by Consumer Focus, and played a role in the industry consultation which led to ...

4. List of mobile virtual network operators in the United Kingdom

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

   List of mobile virtual network operators in the United Kingdom. This is a list of notable mobile virtual network operators (MVNOs) in the United Kingdom, which lease wireless telephone and data spectrum from the major carriers EE, O2, Three and Vodafone for resale.

5. BT Mobile | Wikipedia

   en.wikipedia.org/wiki/BT_Mobile

   BT Mobile. BT Mobile is a mobile virtual network operator (MVNO) provided by BT Consumer; a division of BT Group in the United Kingdom that was launched in March 2015. [1] It uses the EE network [2] via an MVNO agreement signed in March 2014 [3] as well as using the spectrum BT won in the 2013 4G auction. [4][5] EE is now owned by BT following ...

6. Comparison of mobile phone standards | Wikipedia

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

   In 3G, the most prevalent technology was UMTS with CDMA-2000 in close contention. All radio access technologies have to solve the same problems: to divide the finite RF spectrum among multiple users as efficiently as possible. GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA.

7. 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 three major cellular carriers in the countryv—AT&T Mobility, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.