What is an IMEI Number?
A complete guide to understanding IMEI numbers and why they matter when buying or selling a phone.
IMEI Explained
IMEI stands for International Mobile Equipment Identity. It is a unique 15-digit number that identifies every mobile phone, tablet, and cellular device in the world.
Just like a car has a VIN number, every phone has an IMEI. It is assigned during manufacturing and cannot be changed. This makes it the most reliable way to identify and verify a specific device.
Example of a 15-digit IMEI number
What Does Each Part Mean?
Why IMEI Matters
Stolen Phone Protection
When a phone is reported stolen, its IMEI is added to a global blacklist. Carriers worldwide block the device from connecting to their network, making it useless.
Carrier Lock Verification
The IMEI reveals if a phone is locked to a specific carrier. A locked AT&T phone won't work with a T-Mobile SIM until it's unlocked.
Warranty Tracking
Manufacturers use the IMEI to track warranty status, repair history, and activation date.
Device Authentication
The IMEI confirms the exact model, storage capacity, and color of a device — useful for verifying seller claims.
How to Find Your IMEI
The fastest way works on every phone:
*#06#
Dial this code and the IMEI appears instantly
Frequently Asked Questions
Can I use my phone if the IMEI is blacklisted?
No. Blacklisted phones are blocked from all carrier networks. The device will not make calls, send texts, or use mobile data.
Can a blacklisted IMEI be unblocked?
Only the original owner who reported it can request removal from the blacklist through their carrier.
Is IMEI the same as serial number?
No. The IMEI is used by carriers and the GSMA for network identification. The serial number is used by the manufacturer for warranty and support.
Do tablets have IMEI numbers?
Only tablets with cellular capability (SIM card) have IMEI numbers. Wi-Fi only tablets do not.
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