What is typically stored in a SIM card's ICCID?

The ICCID, or Integrated Circuit Card Identifier, is a unique identifier that is typically stored on a SIM card. It is a vital component for identifying the card within mobile telecommunications networks. The ICCID is made up of a series of digits that usually includes the country code, the issuer identifier, and a unique account number that helps to distinguish one SIM card from another.

This identifier is essential for network operators as it allows them to manage mobile services and ensure that communication is correctly routed through their systems. The ICCID helps provide a layer of security and management for mobile devices.

Understanding the significance of the ICCID is important when dealing with network provisioning, account management, and troubleshooting connectivity issues, as it represents a direct link to the subscriber's account and device.