Checks
Run a specific check and learn how to read the result.
Free iPhone IMEI check
Free iPhone IMEI check: confirm the exact model, see whether Find My / Activation Lock is on and check Apple warranty by serial before you buy a used iPhone.
Read more Find My / Activation LockFind My iPhone & Activation Lock check
Check whether Find My iPhone / Activation Lock is on or off using the IMEI. Read live, free, and explained in plain language before you buy a used iPhone.
Read more Apple warranty checkApple warranty check by serial number
Free Apple warranty check by serial number for iPhone, iPad, Mac, Apple Watch and AirPods. See coverage, AppleCare, estimated purchase date and open repairs in seconds.
Read more BlacklistIMEI blacklist check
What an IMEI blacklist is, how carriers block lost and stolen phones, and how to reduce the risk of buying one. GSMA lookup coming soon on IMEI.si.
Read moreGuides
Background knowledge for buying and selling phones.
What is an IMEI number?
An IMEI is the 15-digit hardware identity of a phone. Learn what TAC, serial and check digit mean, how IMEI differs from IMEISV and serial number, and why dual-SIM phones have two.
Read more GuideHow to find your IMEI
Five ways to find a phone's IMEI: dial *#06#, Settings on iPhone and Android, the SIM tray, the box and your Apple or Google account, even when the phone is off.
Read more GuideBuying a used phone: the checklist
A practical checklist for buying a used iPhone or Android: IMEI check, Find My, battery, screen, cameras, SIM test and the paperwork that protects you.
Read moreFree tools
Quick utilities that run in your browser.