15-digit device fingerprint

Know exactly what phone
you're really buying.

Every phone carries a unique 15-digit IMEI number. Validate its format instantly below, then learn how to confirm a device isn't blacklisted, stolen, or locked before you pay for it.

Dial *#06# on your phone to find its IMEI. This tool checks the number's format and checksum — for blacklist and carrier-lock status, contact your carrier or check the manufacturer's official registry.
FORMAT VALID
490154 203237 518
15
digits in every IMEI
1
unique ID per device
*#06#
shows it on any phone
0
signup required to check format
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Process

How an IMEI check works

Three steps stand between you and a confident purchase.

01 / Locate

Find the IMEI

Dial *#06# on the handset, or check the original box, receipt, or Settings > About Phone.

02 / Validate

Check the format

Confirm the number is a genuine 15-digit IMEI with a valid checksum using the tool above.

03 / Verify status

Confirm the history

Cross-check the IMEI with your carrier or the manufacturer's registry for blacklist, lock, and warranty status before you buy.

Why it matters

What a proper check protects you from

Skipping this step is one of the most common — and expensive — mistakes in the second-hand phone market.

Blacklist status

Reveals whether the device has been reported lost, stolen, or blocked by any carrier worldwide.

Carrier lock

Confirms whether the phone is locked to a specific network or fully unlocked for any SIM.

Warranty coverage

Shows whether the manufacturer's warranty is still active on the device.

Model match

Verifies the phone's real model, color, and storage against what the seller advertised.

Activation history

Shows when the device was first activated, helping confirm the seller's story checks out.

Resale confidence

Lets sellers prove a device is clean, which builds trust and speeds up the sale.

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Common myths

What people get wrong about IMEI checks

MYTH 01

"If the phone turns on, it's not stolen."

A stolen phone can function normally for days or weeks before a carrier flags and blocks it. Powering on tells you nothing about blacklist status.

MYTH 02

"IMEI checks are only for iPhones."

Every GSM-compatible smartphone has an IMEI — Samsung, Xiaomi, Huawei, Google Pixel, OnePlus, and more can all be checked the same way.

MYTH 03

"A clean result guarantees the phone is fine."

An IMEI check is powerful but works best alongside a physical inspection, a hardware test, and verifying the seller's identity.

FAQ

Frequently asked questions

An IMEI (International Mobile Equipment Identity) is a unique 15-digit code assigned to every cellular phone or tablet. No two devices share the same IMEI, which makes it the most reliable way to identify a specific handset.

Dial *#06# on the keypad of almost any phone to display it instantly. You can also find it under Settings > About Phone on Android, Settings > General > About on iPhone, or printed on the original box and receipt.

Checking the IMEI reveals whether a device has been reported lost or stolen, whether it's locked to a specific carrier, and whether its warranty is still active — protecting you from paying for a phone that could be deactivated at any time.

No, legitimate devices always have a unique IMEI. Duplicate IMEIs are usually a sign of a cloned or counterfeit device, which is itself a red flag worth investigating before purchase.

Validating the format and checksum of an IMEI, like the tool on this page, is free. Full blacklist and ownership history reports are often provided by carriers or specialized registries, sometimes for a small fee.