IMEI ⇄ IMEISV converter
IMEISV is the 16-digit version of the IMEI that networks see. Convert between the two formats in either direction.
How it works
- 01Pick the direction: IMEI → IMEISV or IMEISV → IMEI.
- 02Enter the number (and the software version for IMEISV).
- 03Copy the converted result.
What is the difference?
An IMEI is 14 identifying digits plus a Luhn check digit. An IMEISV keeps the same 14 digits but replaces the check digit with a 2-digit software version number (SVN), giving 16 digits.
Where you see IMEISV
Network logs, carrier portals and some diagnostic menus report the IMEISV. To check the phone's status or warranty you usually need the regular 15-digit IMEI.
Anatomy of an IMEI
Every IMEI has the same 15-digit structure. Each part tells you something different.
Type Allocation Code. Identifies the manufacturer and exact model. The first two digits are the reporting body.
Unique number the manufacturer assigns to this single device.
Calculated from the other 14 with the Luhn formula. Catches typos.
Frequently asked questions
How do I get the IMEI from an IMEISV?
Take the first 14 digits and recalculate the Luhn check digit; this tool does it for you.
What is the SVN?
The software version number changes when the manufacturer updates the phone's baseband firmware.
Can I check a phone with its IMEISV?
Convert it to the 15-digit IMEI first, then run the check.
More free tools
- Phone checkIMEI blacklist checkFind out whether a phone has been reported lost or stolen before you pay for it. We check the IMEI against worldwide blacklists in seconds.
- Phone checkiCloud & Find My iPhone checkAn iPhone with Find My turned on can't be set up by anyone except its owner. Check iCloud and lost-mode status by IMEI before buying.
- Phone checkCarrier & SIM-lock checkFind out which network a phone was sold on and whether it is SIM-locked, so you know it will work with your SIM.
- Phone checkWarranty checkSee whether a phone is still under warranty and where and when it was first sold, so you know its true age.
- Phone checkApple serial number checkCheck an iPhone, iPad or Mac by serial number to confirm the model and configuration, and see warranty and iCloud status.
- FreeIMEI validator & analyzerCheck whether an IMEI is genuine-looking or mistyped. We verify its length and Luhn checksum and break it into its parts: TAC, serial number and check digit.
- FreeIMEI generatorCreate random IMEI numbers that pass the Luhn checksum, for testing apps, forms and databases. Generate up to 1,000 at a time and export them in one click.
- FreeBulk IMEI checkerPaste a list of IMEIs from a spreadsheet, invoice or stock sheet. We validate every number, flag typos and duplicates, identify each model and let you export a clean CSV.
- FreeICCID generator & validatorCheck whether a SIM card's ICCID is valid and where it was issued, or generate valid test ICCIDs for your app or database.
- FreeIMEI check digit calculatorType the first 14 digits of an IMEI and get the 15th digit, the Luhn check digit, instantly.
- FreeTAC lookupThe first 8 digits of every IMEI, the TAC, identify the device model. Enter a TAC or a full IMEI to see the brand and model.
- FreeMEID converterConvert a CDMA MEID between hexadecimal and decimal, and calculate its pseudo-ESN and check digit.
- FreeHow to find your IMEI numberEvery phone has a unique IMEI. Here are five quick ways to find it, even if the phone is lost or won't turn on.