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  2. Prepaid mobile phone - Wikipedia

    en.wikipedia.org/wiki/Prepaid_mobile_phone

    A prepaid mobile device (also commonly referred to as pay-as-you-go (PAYG), pay-as-you-talk, pay and go, go-phone or prepay) is a mobile device such as a phone for which credit is purchased in advance of service use. The purchased credit is used to pay for telecommunications services at the point the service is accessed or consumed.

  3. List of United States wireless communications service ...

    en.wikipedia.org/wiki/List_of_United_States...

    The top four wireless telecommunications facilities-based service providers by subscriber count in the United States are: Verizon : 121.3 million (Q2 2021) [2] T-Mobile US : 104.8 million (Q2 2021) [3]

  4. Vonage - Wikipedia

    en.wikipedia.org/wiki/Vonage

    Vonage (/ ˈ v ɒ n ɪ dʒ /, legal name Vonage Holdings Corp.) is an American publicly held business cloud communications provider.Headquartered in Holmdel Township, New Jersey, the company was founded in 2001 as a provider of residential telecommunications services based on voice over Internet Protocol (VoIP).

  5. 3G - Wikipedia

    en.wikipedia.org/wiki/3G

    The second 3G network operator in the USA was Verizon Wireless in July 2002, also on CDMA2000 1x EV-DO. AT&T Mobility was also a true 3G UMTS network, having completed its upgrade of the 3G network to HSUPA. The first commercial United Kingdom 3G network was started by Hutchison Telecom which was originally behind Orange S.A..

  6. U.S. Cellular - Wikipedia

    en.wikipedia.org/wiki/U.S._Cellular

    United States Cellular Corporation (doing business as UScellular) is an American mobile network operator headquartered in Chicago, Illinois.Formed in 1983 as a subsidiary of Telephone and Data Systems Inc. (which owns an 84% stake), it is the fifth largest wireless carrier in the United States, with over 4.9 million customers in 426 markets in 23 states as of the second quarter of 2020.

  7. History of the iPhone - Wikipedia

    en.wikipedia.org/wiki/History_of_the_iPhone

    Cricket Wireless announced on May 31, 2012 that it would become the first prepaid carrier in the US to offer iPhone 4 and iPhone 4S, beginning June 22, 2012. A week later, Virgin Mobile USA became the second American prepaid carrier to offer iPhone 4 and 4S, announcing plans to release the phones on June 29, 2012. [77]

  8. Telephone numbering plan - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbering_plan

    A telephone numbering plan is a type of numbering scheme used in telecommunication to assign telephone numbers to subscriber telephones or other telephony endpoints. Telephone numbers are the addresses of participants in a telephone network, reachable by a system of destination code routing.

  9. Mahanagar Telephone Nigam Limited - Wikipedia

    en.wikipedia.org/wiki/Mahanagar_Telephone_Nigam...

    MTNL various service brands are: Dolphin – a postpaid GSM service which also provides value added services such as 3G, Trump – a prepaid GSM service, similar to Dolphin, Garuda – a WLL service which provides an FW tariff, and a Mobile tariff. Phone numbers belonging to MTNL start with the prefix 2 in fixed line telephones and WLL.