= Electronic serial number
{wiki=Electronic_serial_number}
An Electronic Serial Number (ESN) is a unique identifier assigned to mobile devices, especially used in the telecommunications industry. The ESN is typically used to identify a mobile device for various purposes, including network access, billing, and device tracking. Here are some key points about ESNs: 1. **Device Identification**: The ESN is used by mobile network operators to identify and authenticate devices accessing their network.
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