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  2. Apple SIM - Wikipedia

    en.wikipedia.org/wiki/Apple_SIM

    However, activating mobile services on AT&T will permanently lock the Apple SIM to AT&T, requiring the purchase of a new Apple SIM in order to use a different carrier. [ 4 ] The Apple SIM is known as a Removable SIM with Remote Provisioning [ 5 ] – it is a special SIM card that may be configured with different operator profiles.

  3. 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.

  4. Dual SIM - Wikipedia

    en.wikipedia.org/wiki/Dual_SIM

    Some phone models utilize a "hybrid" SIM tray, which can hold either two SIM cards, or one SIM card and one MicroSD memory card. [31] [32] The Huawei Mate 20 range introduced a proprietary memory card format called Nano Memory, exactly the size and shape of a nano SIM card. [33] Some devices accept dual SIMs of different form factors.

  5. iPhone hardware - Wikipedia

    en.wikipedia.org/wiki/IPhone_hardware

    An iPhone 4S activated on a CDMA carrier, however, does have a SIM card slot but does not rely on a SIM card for activation on that CDMA network. A CDMA-activated iPhone 4S usually has a carrier-approved roaming SIM preloaded in its SIM slot at the time of purchase that is used for roaming on certain carrier-approved international GSM networks ...

  6. SIM lock - Wikipedia

    en.wikipedia.org/wiki/SIM_lock

    SIM locking curbs this by prohibiting change of network (using a new SIM). In some countries, SIM locking is very common if subsidized phones are sold with prepaid contracts. It is important to note, however, that the technology associated with the phone must be compatible with the technology being used by the network carrier.

  7. How to make payments with your phone - AOL

    www.aol.com/finance/payments-phone-164336000.html

    Open the Wallet app on your iPhone, tap the plus sign and follow the instructions to add a new card to Wallet. Once you’ve added the card, your bank or card issuer will verify the card.

  8. Mobile number portability - Wikipedia

    en.wikipedia.org/wiki/Mobile_number_portability

    sim card of the new mobile company that will cost around 15 PEN. United States: 2003.11.24 0 Free iconectiv manages the Number Portability Administration Center (NPAC), the largest number portability system in the world. Consisting of seven regional systems, the NPAC facilitates number porting across all Service Providers in the United States.

  9. eSIM - Wikipedia

    en.wikipedia.org/wiki/ESIM

    An eSIM (embedded SIM) is a form of SIM card that is embedded directly into a device as software installed onto a eUICC chip. First released in March 2016, eSIM is a global specification by the GSMA that enables remote SIM provisioning ; end-users can change mobile network operators without the need to physically swap a SIM from the device.