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2. List of mobile network operators in the United States - Wikipedia

   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. AT&T - Wikipedia

   en.wikipedia.org/wiki/AT&T

   AT&T Inc. AT&T Inc. is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. [ 4] It is the world's third-largest telecommunications company by revenue and the second-largest wireless carrier in the United States behind Verizon but ahead of T-Mobile. [ 5]

4. Dallas Fort Worth International Airport - Wikipedia

   en.wikipedia.org/wiki/Dallas_Fort_Worth...

   [9] [10] It has its own post office ZIP Code, 75261, and United States Postal Service city designation ("DFW Airport, TX"), as well as its own police, fire protection, and emergency medical services. DFW Airport has service to 254 destinations (191 domestic, 63 international) from 28 passenger airlines.

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

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

   However, it does not regulate most aspects of mobile phone service; prices and service quality are not regulated at all, while spectrum allocation is handled by Innovation, Science and Economic Development Canada. There are numerous mobile virtual network operators, such as Virgin Mobile Canada. These are not presently listed due to difficulty ...

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

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

   June 27, 2024 at 11:49 AM. (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 ...

7. SBC Long Distance - Wikipedia

   en.wikipedia.org/wiki/SBC_Long_Distance

   SBC Long Distance LLC [1] [2] is a long-distance telephone company owned by AT&T that does business as AT&T Long Distance. SBC Long Distance competes with other long-distance providers who provide service within some of the Bell Operating Company service boundaries of AT&T. SBC Long Distance is a separate subsidiary than AT&T Communications ...

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

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

   Apple eSIM supported Worldwide Service Provider [623] Truphone: T-Mobile: GSM & UMTS: Apple eSIM supported Worldwide Service Provider [623] Ubigi: Various: Various: Apple/Android/Windows and Connected Car eSIM Supported. Pronounced You-bee-gee. Subsidiary of Transatel. Operates on MNC 901-37. />

9. Session border controller - Wikipedia

   en.wikipedia.org/wiki/Session_border_controller

   Session border controller. A session border controller ( SBC) is a network element deployed to protect SIP based voice over Internet Protocol (VoIP) networks. Early deployments of SBCs were focused on the borders between two service provider networks in a peering environment. This role has now expanded to include significant deployments between ...