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When purchasing or upgrading your mobile plan, your wireless carrier may give you an eSIM activation card with a QR code for you to scan and confirm the setup of your 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.
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.
Nowadays ICCID numbers are also used to identify eSIM profiles, not only physical SIM cards. ICCIDs are stored in the SIM cards and are also engraved or printed on the SIM card body during a process called personalisation. The ICCID is defined by the ITU-T recommendation E.118 as the primary account number. [19] Its layout is based on ISO/IEC 7812.
IMEI number - an example. The International Mobile Equipment Identity (IMEI) [1] is a numeric identifier, usually unique, [2] [3] for 3GPP and iDEN mobile phones, as well as some satellite phones.
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Idea Cellular was an Indian telecommunications company based at Mumbai, Maharashtra. [4] It was an integrated GSM operator and had 220.00 million subscribers as of June 2018. [ 5 ]