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IMEI Validator

Validate a 15-digit phone IMEI with the Luhn checksum and split out the TAC online.

About this tool

Validate a phone's 15-digit IMEI against the Luhn checksum and break out the TAC (Type Allocation Code) and serial. A structural check — it does not query any device database.

Frequently asked questions

What is an IMEI?

The unique 15-digit serial of a mobile device. The first 8 digits (TAC) identify the model; the last digit is a Luhn check.

Can this tell if a phone is blacklisted?

No. It only validates the number's format. Blacklist/stolen status requires a carrier or GSMA lookup.

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