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  2. Sprint Corporation - Wikipedia

    en.wikipedia.org/wiki/Sprint_Corporation

    Alamosa PCS, which Sprint Nextel acquired on February 2, 2006, was the largest of its affiliate carriers. Other acquired affiliates include Ubiquitel, iPCS, Enterprise, and Northern. In 2021, after merging with Sprint in 2020, T-Mobile acquired the remaining two of Sprint's original ten affiliates, Shentel [60] and Swiftel. [61]

  3. 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 .

  4. T-Mobile US - Wikipedia

    en.wikipedia.org/wiki/T-Mobile_US

    T-Mobile US operates two main brands: T-Mobile and Metro by T-Mobile (acquired in a 2013 reverse takeover of MetroPCS that also led to T-Mobile's listing on the NASDAQ). In 2020, T-Mobile expanded through the acquisition of Sprint , which also made T-Mobile the operator of Assurance Wireless , a service subsidized by the federal Lifeline program .

  5. Roaming - Wikipedia

    en.wikipedia.org/wiki/Roaming

    An SMS welcome to Proximus customers who have roamed onto T-Mobile (now EE) in the UK. Roaming is a wireless telecommunication term typically used with mobile devices, such as mobile phones. It refers to a mobile phone being used outside the range of its native network and connecting to another available cell network.

  6. Merger of Sprint Corporation and T-Mobile US - Wikipedia

    en.wikipedia.org/wiki/Merger_of_Sprint...

    SoftBank, Sprint's owner, has agreed to surrender 48.8 million T-Mobile shares acquired in the merger to the New T-Mobile, making SoftBank's effective ratio of 11.31 shares per T-Mobile share. Sprint shareholders other than SoftBank will continue to get the original fixed exchange ratio of 0.10256 T-Mobile shares for each Sprint share, or the ...

  7. Mobile network codes in ITU region 3xx (North America)

    en.wikipedia.org/wiki/Mobile_network_codes_in...

    Montana; former Get Mobile Inc., [85] SmartCall, LLC; acquired by T-Mobile in 2017; [146] MNC withdrawn [112] 310: 310: T-Mobile: Not operational: GSM 1900: Formerly Aerial Communications [82] 310: 311: Farmers Wireless: Not operational: GSM 1900: NE Alabama; acquired by AT&T in 2008 310: 320: Cellular One: Smith Bagley, Inc. Operational: GSM ...

  8. 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.

  9. Network switching subsystem - Wikipedia

    en.wikipedia.org/wiki/Network_switching_subsystem

    EIR is a system that handles real-time requests to check the IMEI (checkIMEI) of mobile devices that come from the switching equipment (MSC, SGSN, MME). The answer contains the result of the check: whitelisted – the device is allowed to register on the network. blacklisted – the device is prohibited from registering on the network.