IMEI Validator

How to use

1. 1Pick a mode at the top: Single IMEI for one number with a per-digit Luhn breakdown, or Batch list to validate one IMEI per line.
2. 2Type or paste the IMEI. Spaces, dashes, dots, and underscores are ignored, so the on-box 2-6-6-1 format works directly.
3. 3Read the verdict. The result card shows valid or invalid, the expected check digit, the TAC and serial breakdown, and the GSMA reporting body.
4. 4Use the bare 14-digit mode when you only have the body and want the algorithm to compute the missing check digit, then click Copy with check digit.
5. 5Paste a 16-digit IMEISV to extract the trailing Software Version Number. IMEISV has no Luhn check digit, so any well-formed 16-digit value passes.
6. 6In batch mode, click Copy valid only to keep just the IMEIs that pass the algorithm, which is useful for cleaning device fixtures or MDM lists.

About this tool

IMEI Validator checks International Mobile Equipment Identity numbers entirely in your browser using the algorithm defined in 3GPP TS 23.003 Annex B. Paste any IMEI in any format. Spaces, dashes, dots, and underscores are stripped automatically, so a number copied from a phone box, a Settings screen, or a *#06# display works without reformatting. The tool accepts the standard 15-digit IMEI, a bare 14-digit body (for which it computes the expected check digit so you can complete the number), and the 16-digit IMEISV variant that replaces the Luhn check digit with a 2-digit Software Version Number. The result panel shows the verdict (valid or invalid), the expected Luhn check digit, the Type Allocation Code (TAC, positions 1 to 8) that identifies the manufacturer and model, the manufacturer-assigned serial number (positions 9 to 14), the check digit (position 15), and, for IMEISV inputs, the trailing 2-digit SVN. A reporting body badge translates the 2-digit TAC prefix into the GSMA-assigned organization that issued the TAC (for example BABT, PTCRB, TAF, ANATEL) so you can see which region originated the code. A per-digit Luhn breakdown shows each digit, whether it was doubled, and its contribution to the weighted sum so the math is easy to verify and the tool doubles as a teaching aid. A separate batch mode accepts one IMEI per line, validates the entire list at once, shows valid and invalid counts, marks each row with its kind (IMEI, bare 14-digit body, or IMEISV), and exposes a one-click copy of the valid-only normalized list, which is useful for cleaning device fixtures, MDM imports, and exported asset spreadsheets. Useful for resellers checking IMEIs before buying a used phone, QA engineers generating mock IMEIs for tests, IoT and MDM teams importing device lists, support agents verifying a customer-typed IMEI was not transcribed wrong, and anyone who needs to understand what the digits on a phone's IMEI label actually mean. This tool does not look up brand, model, blacklist status, carrier, activation, or warranty: those facts live in the GSMA TAC database and carrier blocklists and require an authenticated query. The IMEI you paste here never leaves your browser.

Free to use. Works in your browser. No signup, no login.