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2. Remote SIM provisioning - Wikipedia

   en.wikipedia.org/wiki/Remote_SIM_provisioning

   The LPA will request carrier profiles available for download, either by submitting the activation code provided by the user or the eSIM ID (EID) of the eUICC. The SM will provide the requested profile encrypted in a way that only the eUICC can decrypt/install to ensure the network authentication key remains secure.

3. 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.

4. 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.

5. List of mobile virtual network operators in the United Kingdom

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

   Vodafone: 15 December 2016 [44] Ceased operations. LIFE Mobile: EE: 29 November 2016 [45] Acquired by Plusnet. Mobile by Sainsbury's: Vodafone: 15 January 2016 [46] Ceased operations. Our Telecom EE: 16 August 2016 [47] Dissolved. Ovivo Mobile: Vodafone: 19 March 2014 [48] Ceased operations. PG Mobile Three: 2016 [49] Ceased operations. Plusnet ...

6. SIM card - Wikipedia

   en.wikipedia.org/wiki/SIM_card

   A typical SIM card (mini-SIM with micro-SIM cutout) A SIM card or SIM (Subscriber Identity Module) 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).

7. SIM Application Toolkit - Wikipedia

   en.wikipedia.org/wiki/SIM_Application_Toolkit

   SIM Application Toolkit (STK) is a standard of the GSM system which enables the subscriber identity module (SIM card) to initiate actions which can be used for various value-added services. [1]