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2. 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.

3. Roaming SIM - Wikipedia

   en.wikipedia.org/wiki/Roaming_SIM

   Global roaming SIMs are very often combined with callback technology, whereby the user dials a number in the normal way, but the call is intercepted by an application on the SIM card and turned from an outbound call to an inbound call which the user answers. This ensures that the call travels exclusively through the least cost route, and also ...

4. Preferred Roaming List - Wikipedia

   en.wikipedia.org/wiki/Preferred_Roaming_List

   The Preferred Roaming List (PRL) is a database residing in a wireless (primarily CDMA) device, such as a cellphone, that contains information used during the system selection and acquisition process. In the case of R-UIM -based CDMA devices, the PRL resides on the R-UIM .

5. Top US carriers say roaming customers facing ... - AOL

   www.aol.com/news/top-us-carriers-roaming...

   (Reuters) - Major U.S. telecom service providers said on Thursday some of their users traveling overseas were having connectivity problems due to an issue at a partner network provider.

6. Low-cost internet for seniors and retirees: How to stay ... - AOL

   www.aol.com/finance/low-cost-internet-for...

   Spectrum is a leading internet service provider in the US, offering high-speed internet to customers in more than 40 states. Its regular plans start as low as $29.99 a month with a two-year price ...

7. List of mobile network operators in the United States

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

   This is a list of mobile network operators (MNOs) in the United States. The Cellular Telecommunications & Internet Association (CTIA), lists approximately 30 facilities-based wireless service providers in the United States as members. Competitive Carriers Association (CCA) has over 100 members. [1]