That SIM card and it's unique serial number (the ICCID, or integrated circuit card ID) is registered with a cellular network, ...

A physical SIM card is essentially a tiny card with a chip that connects your phone to your wireless carrier. It contains ...

Verify the ICCID and IMEI numbers. The ICCID is a serial number (up to 22 numbers) that identifies a SIM card. The number is ...