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  2. AT&T outage: Company says network is fully restored after ...

    www.aol.com/news/thousands-t-customers-report...

    AT&T, the nation’s largest carrier, has more than 240 million subscribers. More than 70,000 outages were reported after 8 a.m. ET, according to Downdetector , a website that detects outages.

  3. Is AT&T back up after cell phone outage and what does iPhone ...

    www.aol.com/t-back-cell-phone-outage-162808407.html

    Thousands of users of AT&T, T-Mobile and Verizon Wireless reported issues with the service providers on Thursday. Here's what we know.

  4. AT&T customers hit by widespread cellular outages in the U.S.

    www.aol.com/news/t-verizon-t-mobile-customers...

    Cricket Wireless, which is owned by AT&T and uses its network, is also experiencing cellular problems. More than 13,500 customers reported outages as of 8 a.m. ET on Thursday. The number dipped to ...

  5. Mobile phone signal - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_signal

    A mobile phone signal (also known as reception and service) is the signal strength (measured in dBm) received by a mobile phone from a cellular network (on the downlink). Depending on various factors, such as proximity to a tower, any obstructions such as buildings or trees, etc. this signal strength will vary. Most mobile devices use a set of ...

  6. 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.

  7. Comparison of mobile phone standards - Wikipedia

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

    Able to produce a reasonable call with lower signal (cell phone reception) levels. Uses soft handoff, reducing the likelihood of dropped calls. IS-95's variable rate voice coders reduce the rate being transmitted when speaker is not talking, which allows the channel to be packed more efficiently. Has a well-defined path to higher data rates.

  8. AT&T service restored after nationwide outage. Feds are ... - AOL

    www.aol.com/call-cellphone-outage-affecting-911...

    Around 9 a.m., AT&T had more than 73,000 reported outages, Cricket Wireless had nearly 13,000, Verizon had over 4,000 and T-Mobile had more than 2,000, Down Detector reported. The service ...

  9. Still having cellphone problems in Sacramento? Here’s the ...

    www.aol.com/still-having-cellphone-problems...

    Customers across the United States — including those in Northern California — experienced cellular phones issues due to outages by AT&T, according to data from Downdetector and the telecom giant.