"International Mobile Device Identifier" is what IMEI stands for. Every mobile gadget with a wireless connection has a distinctive IMEI code. This includes cellular-enabled laptops, wearables, cellphones, and other cellular data-capable hardware.

A mobile gadget can only be identified by its IMEI number. It's distinct from the UICC number or SIM card, which are connected to a detachable card in the device. This means that regardless of the card that is present in a given device, its IMEI can be used to monitor or find it. Your cell carrier, for instance, may still be able to prevent access from the stolen phone using the IMEI if your phone is taken and the SIM card has been changed.

IMEI vs Serial Number

Given that it is a distinct number associated with technology, an IMEI is comparable to a registration number. While IMEI numbers are created by the GSMA (Groupe Spéciale Mobile Association), a global group that regulates mobile network carriers, serial numbers are created by the maker. Each maker of mobile devices is given a variety of IMEIs from the GSMA to use on their products.

The duration and letter types for identification numbers are up to the discretion of the manufacturer (numeric or alphanumeric). IMEI numbers are always 15 characters long and are made up of a check code (or hash), which verifies the validity of the number, and a distinctive 14-digit number. The IMEISV (IMEI Software Version), a variant of the IMEI, consists of the 14-digit number + two numbers for the software version of the device. After a software update, the IMEISV might alter.

The "About" part of the device options on the majority of devices allows you to examine your device's IMEI. By pressing the number keypad's *#06# key, you can also examine the IMEI.