The ICCID (Built-in Circuit Card ID) is a singular identifier for a SIM card. It’s used to determine the SIM card to the community operator and is required for activation. On an iPhone, the ICCID could be discovered within the Settings app.
The ICCID is necessary as a result of it’s used to determine the SIM card to the community operator. This info is used to activate the SIM card and permit it to hook up with the community. Moreover, the ICCID can be utilized to trace the SIM card whether it is misplaced or stolen.