What is an IMEI number?

An IMEI (International Mobile Equipment Identity) number is a unique 15-digit number assigned to a mobile device. It helps identify a wireless phone and distinguish it from millions of other devices.

How can I find my IMEI number?

Ways to get your IMEI number: Dial *#06# on your phone Go to Settings and select About Phone Check the device packaging or SIM tray Sign in to your wireless account

What is an IMEI number used for?

An IMEI is used to: Identify a device on a mobile network. Check device compatibility. Verify warranty details. Report lost or stolen devices. Find out if a device is blacklisted or eligible for activation.

Why does my phone have two IMEI numbers?

Many modern phones support dual SIMs or eSIM and. each cellular connection has its own unique IMEI. Devices with two active mobile lines often have two IMEI numbers.

IMEI 2 is the second IMEI assigned to a dual-SIM or eSIM-capable device. It identifies the second cellular connection while IMEI 1 identifies the primary connection.

What does an IMEI number look like?

An IMEI is typically a 15-digit numeric code that uniquely identifies a mobile device. Example format: 123456789012345. You can view your IMEI by dialing *#06# or checking your device settings.

Does an IMEI number change?

No. An IMEI is permanently assigned to a device and generally does not change after software updates, SIM changes, or factory resets. The IMEI remains the same throughout the device's lifecycle unless the hardware is altered or replaced by the manufacturer.

IMEI Check: Find Your Phone's IMEI Number | AT&T

AT&T IMEI finder

Thinking about switching to AT&T? Check your device’s IMEI to identify the device and make sure it works on our network.

Identify your device

We need your device’s IMEI. If asked, also enter the EID. These help determine if you can activate your device on our network.

Enter your device IMEI number

0/15

Where can I find the IMEI?

Where to find the IMEI

Here’s how to look up the 15-digit IMEI on your cellular device.

Phone keypad

Open your phone's keypad and enter *#06# to see your IMEI on the screen. No app or menu required.

iOS devices

Go to Settings. Tap General, then About. Scroll to IMEI. On older iPhones, you'll see two IMEIs. Long-press on either to copy it directly.

Android devices

Go to Settings. Tap About Phone, then Status Information. Choose IMEI. IMEI location varies by manufacturer but is always in About Phone.

Box or SIM tray

The IMEI is printed on the original box label near the barcode. On some devices, it’s laser-etched on the SIM tray. This helps when the phone is off.

How it works

Dial *#06#

Copy the number

Paste the number

IMEI references

	Purpose	Length
IMEI	Global device identifier used by carriers, manufacturers, insurers, and resale programs.	15 numbers
MEID	Mobile Equipment Identifier. Used by CDMA networks (Verizon, Sprint). Functionally similar to IMEI.	14 hex characters
Serial number	Manufacturer-specific number. Used for warranty and repair.	Varies
EID	Embedded SIM identifier. Pairs your eSIM profile to the device.	32 digits

Benefits of IMEI check

Valid identifier

Confirms the 15-digits form an IMEI that passes the global Luhn checksum.

Device details

The first 8 digits identify the manufacturer and model. This is useful for trade-ins.

Network-ready format

Providers require a valid IMEI to activate your device on their network.

Universal compatibility

IMEI is a globally recognized device identifier. The same number works for providers, manufacturers, insurers, and resale programs.

Typo-free entry

Catches mistyped digits. This way you don’t submit an incorrect IMEI when you activate or trade-in.

Fraud check

Validate an IMEI before you purchase a used device to know it isn’t fake.