Free IMEI Checker
Check an IMEI or IMEISV for a valid check digit and read the type allocation code, serial number, reporting body and format.
Free to use, no account required
Paste the IMEI printed under the SIM tray, on the back of the device, or shown in the phone settings. This checker verifies the check digit and resolves the type allocation code to the brand and model it was registered for. It does not perform a blacklist, carrier or warranty lookup.
Spaces and hyphens are ignored. Nothing you paste is uploaded or saved.
How an IMEI is built
8 digits
TAC
The type allocation code registered by the manufacturer. Its first two digits identify the reporting body.
6 digits
Serial number
Identifies this unit within the allocation. It is not a global sequence you can decode.
1 digit
Check
A Luhn checksum that catches typing errors.
A 16-digit IMEISV replaces that final check digit with a two-digit software version. To record an IMEI against a repair ticket, use the repair ticket template, or read how IMEI tracking keeps devices connected to their repair history.
Frequently asked questions
How does this tool know the brand and model?
It takes the type allocation code, the first 8 digits of the IMEI, and matches it against a public TAC database of the codes manufacturers have registered. The lookup runs inside your browser, so the number is never uploaded. If a code is missing from that list the tool says so instead of guessing.
What does a valid IMEI check digit prove?
It proves the number is correctly formed: it was copied without a typo and follows the Luhn checksum. It does not prove the device is genuine, that the number belongs to that phone, or that the phone is not reported stolen.
What is the difference between IMEI and IMEISV?
An IMEI has 15 digits: an 8-digit TAC, a 6-digit serial number and one check digit. An IMEISV has 16 digits and replaces the check digit with a two-digit software version, so it cannot be validated with the same checksum.
More free tools
Run the whole workflow in RepairBiz
Repair tickets, POS, inventory and invoicing in one place. Free for 30 days, no card required.
Start your free trial