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2. 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.

3. Personal unblocking key - Wikipedia

   en.wikipedia.org/wiki/Personal_unblocking_key

   If the wrong PIN is entered more than three times, the SIM card will become locked. It can be unlocked by entering the PUK code provided by the mobile service provider, [1] which may be available on the SIM card's packaging, the contract, or provided by customer service after identity verification. After the PUK code is entered, the PIN must be ...

4. SIM card - Wikipedia

   en.wikipedia.org/wiki/SIM_card

   A typical SIM card (mini-SIM with micro-SIM cutout) A SIM (Subscriber Identity Module) card is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone devices (such as mobile phones and laptops).

5. 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.

6. SIM swap scam - Wikipedia

   en.wikipedia.org/wiki/SIM_swap_scam

   A SIM swap scam (also known as port-out scam, SIM splitting, [1] simjacking, and SIM swapping) [2] is a type of account takeover fraud that generally targets a weakness in two-factor authentication and two-step verification in which the second factor or step is a text message (SMS) or call placed to a mobile telephone.

7. 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.

8. Mint Mobile - Wikipedia

   en.wikipedia.org/wiki/Mint_Mobile

   The company was founded in 2015 as Mint SIM, a subsidiary of Ultra Mobile, by David Glickman and Rizwan Kassim. [3]In November 2019, the corporate spin-off of Mint Mobile from Ultra Mobile was completed [4] and Ryan Reynolds acquired 25% ownership in the company.

9. Multi-SIM card - Wikipedia

   en.wikipedia.org/wiki/Multi-SIM_card

   Multi-SIM technology is a result of poor security algorithms used in the encryption of the first generation of GSM SIM cards, commonly called COMP128v1. SIM cloning is now more difficult to perform, as more and more mobile operators are moving towards newer encryption methods, such as COMP128v2 or COMP128v3. SIM cloning is still possible in ...