The identification number associated with a subscriber identity module (SIM) card within the Android operating system serves as a unique identifier. This number, often termed the Integrated Circuit Card ID (ICCID), distinguishes each SIM card globally. It is crucial for network authentication and proper mobile device functionality, enabling devices to connect to cellular networks for voice, data, and SMS services. As an illustration, consider a user attempting to activate a new phone; the ICCID validates the user’s subscription with the mobile network operator.
Accessing this specific SIM card identifier is important for various purposes, including account management, troubleshooting network connectivity issues, and confirming SIM card validity. Historically, this information was primarily used by mobile network operators for internal processes. However, its accessibility to end-users allows for enhanced control over their mobile services and provides a means to verify SIM card authenticity, mitigating potential security risks like SIM swapping.
