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All Devices · IMEI Lookup

IMEI Carrier Check

Run a free IMEI carrier check to identify the original carrier of any device. Essential for unlocking your phone and verifying network compatibility before purchase.

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Dial *#06# on the handset to display its IMEI.

This check runs against a live device database. Create a free account to run it.

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Why Carrier Matters

Why Check a Device's Carrier?

Every phone sold through a carrier is registered in that carrier's database. Knowing the original carrier is crucial for several reasons: it determines who can officially unlock the device, which unlock service to use, and whether the phone is compatible with your network's frequency bands.

If you're buying a used phone and want to use it on your carrier, a carrier lookup confirms whether the device was originally sold by AT&T, T-Mobile, Verizon, or another network — and helps you determine the correct path to unlocking it.

What You'll Discover

Original Carrier Which network sold the device
Lock Status Whether the device is carrier locked
Country of Sale Original market the device was sold in
Network Type GSM, CDMA, or dual compatibility
FAQ

Frequently Asked Questions

Why do I need to know the original carrier?
To unlock a carrier-locked device, you need to contact the original carrier or use an unlock service specific to that carrier. Using the wrong carrier's unlock process will fail. Our lookup tells you exactly which carrier to approach.
Can I use a phone from one carrier on another?
If the phone is unlocked, yes — as long as the phone supports the other carrier's frequency bands. If it's locked, you'll need to unlock it first through the original carrier or an authorised unlock service.
Does this work for international carriers?
Yes. Our carrier lookup covers carriers worldwide, including networks in the US, UK, EU, Asia, and more. We can identify the original carrier for devices sold in most countries.
What is the difference between carrier locked and blacklisted?
A carrier-locked phone works only on one network but functions normally. A blacklisted phone has been reported lost or stolen and is blocked from all networks. These are separate statuses — use our Lost Device Database tool to check blacklist status.