IMEI Info & IMEI Checksum
Check whether the final digit of a 15-digit IMEI is correct, or enter the first 14 digits to calculate the proper checksum digit.
How the IMEI checksum works
An IMEI normally contains 15 digits. The final digit is a checksum calculated from the first 14 digits using the Luhn method. It helps detect typing mistakes but does not confirm whether a device is genuine, registered, blocked or network-unlocked.
Enter 14 digits to generate the correct final digit, or enter all 15 digits to validate and correct the checksum. Always compare the result with the identifier printed on your own device.