What Is an IMEI Number?

IMEI stands for International Mobile Equipment Identity. It's a unique 15-digit number assigned to every mobile device — phones, tablets, smartwatches, and even some laptops with cellular connectivity.

Think of it like a fingerprint for your device. No two devices in the world share the same IMEI number, making it the most reliable way to identify a specific device.

How IMEI Numbers Work

The 15-digit IMEI number follows a specific structure:

• TAC (Type Allocation Code) — Digits 1-8: Identifies the device manufacturer and model
• Serial Number — Digits 9-14: Unique identifier for the individual device
• Check Digit — Digit 15: Calculated using the Luhn algorithm to verify the IMEI's validity

For example, if you see an IMEI starting with 35, it's typically allocated to a major smartphone manufacturer.

How to Find Your IMEI Number

There are several ways to find an IMEI, depending on your device:

Universal Method (All Phones)

Open the phone dialer and type *#06#. The IMEI will display immediately. This works on every phone — Android, iPhone, and even basic feature phones.

iPhone

• Settings → General → About — scroll down to find IMEI
• Check the SIM card tray (iPhone 6s-12) or back of device (iPhone 5-5c)
• Original packaging has a barcode sticker with IMEI

Android

• Settings → About Phone → Status → IMEI information
• Check under the battery (on phones with removable batteries)
• Original box barcode sticker

Samsung

• Settings → About Phone → Status Information → IMEI
• Samsung also displays Knox Warranty Void status in the same menu

Why IMEI Matters

1. Stolen Device Tracking

When a phone is reported stolen, carriers add the IMEI to a shared blacklist database. Blacklisted devices cannot connect to cellular networks, making them nearly useless. This is why police always ask for your IMEI when you report a stolen phone.

2. Buying Used Phones Safely

Before buying a used phone, an IMEI check reveals:

• Whether the device is blacklisted (reported stolen/lost)
• Carrier lock status (locked to a specific network)
• iCloud/FRP lock status (can't be activated without password)
• Warranty status and coverage dates
• Device model, color, and storage specifications

3. Warranty Claims

Manufacturers use IMEI to verify warranty coverage. When you contact Apple, Samsung, or any manufacturer for support, the first thing they'll ask for is your IMEI.

4. Insurance Claims

Insurance companies require the IMEI to process claims for lost, stolen, or damaged devices. Keep a record of your IMEI somewhere safe.

Can IMEI Numbers Be Changed?

Technically, it's possible on some devices, but changing an IMEI is illegal in most countries (including the US, UK, EU, and many others). It's classified as a criminal offense because it's primarily used to circumvent stolen device tracking.

If someone offers you a service to "change" or "repair" an IMEI, that's a red flag — the device is likely stolen.

Free IMEI Check: Verify Any Device

Use our free IMEI checking tools to verify any device in seconds. We support checks for Apple, Samsung, Xiaomi, Google Pixel, Motorola, OPPO, Nokia, and many more brands. No account required for basic checks.