Learn How to Verify an IMEI Number

What Is an IMEI Number and Why It Matters

An IMEI number is a 15-digit code that uniquely identifies your mobile phone on cellular networks worldwide. IMEI stands for International Mobile Equipment Identity. Think of it like a serial number for your phone — no two phones have the same IMEI, making it a permanent identifier that stays with the device regardless of which SIM card you insert.

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Every phone manufactured to connect to cellular networks has an IMEI. This includes smartphones, basic feature phones, and tablets with cellular capability. The number is burned into your phone's hardware during manufacturing, and carriers use it to track, manage, and communicate with your device on their networks.

Understanding your IMEI matters for several practical reasons. Wireless carriers use IMEI numbers to identify stolen phones and add them to blacklists, preventing the device from connecting to networks. If you're buying a used phone, checking the IMEI can reveal whether the device has been reported as lost or stolen. Your IMEI also appears on your carrier's network records, making it useful information if you need to contact customer service about device-specific issues. Some manufacturers use IMEI numbers to validate warranty claims or track which devices received particular software updates.

The IMEI is particularly important in fraud prevention. Between 2022 and 2023, the Federal Communications Commission (FCC) documented significant increases in phone theft and resale of blacklisted devices. Checking an IMEI before purchasing a used phone helps you avoid buying a device that's been stolen or that carriers have blocked from their networks.

Practical takeaway: Your IMEI is your phone's permanent identification number on cellular networks. Knowing how to locate and verify it protects you when buying used phones and helps you manage device-specific issues with your carrier.

How to Find Your IMEI Number Using Your Phone

Locating your IMEI is straightforward and takes less than a minute. The most common method works on virtually every smartphone: dial *#06# on your phone's keypad. When you enter this code, your phone immediately displays your IMEI number on the screen. This works on iPhones, Android phones, and most other cellular devices. You don't need to press "call" — the number appears as soon as you finish typing the code.

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This dialing method works whether or not you have a SIM card inserted, whether you're connected to a network, and whether your phone is locked. The IMEI is stored in your phone's hardware, so the system can retrieve it independently of network status or SIM card information. This makes the *#06# method reliable for any situation where you need to quickly reference your number.

For iPhone users, you can also find your IMEI in the Settings app. Go to Settings, then General, then About. Scroll down and you'll see "IMEI" listed among your device information. This method gives you the same 15-digit number in a format you can easily copy or screenshot.

Android users have multiple options beyond the dialing method. You can navigate to Settings, then About Phone, then look for "IMEI" or "Device Status." The exact menu path varies by manufacturer — Samsung phones, Google Pixel phones, and other brands place this information in slightly different locations within Settings, but it's always in the About or Status section.

You can also find your IMEI on your phone's original packaging or receipt from purchase. Carriers sometimes print it on billing statements or in your online account portal. Your device's physical SIM card tray may also have the IMEI printed on it, though this method is less reliable since the print quality degrades over time.

Practical takeaway: Use *#06# as your quickest method to view your IMEI, but know that Settings apps and original packaging provide backup options if you need to reference the number in different situations.

Verifying Against Carrier Blacklists and Databases

Blacklist databases are maintained by individual wireless carriers to prevent stolen or unpaid devices from using their networks. When a phone is reported stolen or a customer defaults on payment for a financed device, the carrier adds the IMEI to their blacklist. Checking whether an IMEI appears on a carrier's blacklist is one of the most important verification steps, especially when purchasing a used phone.

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Each major U.S. carrier — Verizon, AT&T, T-Mobile, and others — maintains its own blacklist database. These lists are not centralized into one searchable database that the public can query. Instead, individual carriers have developed varying levels of public access to their information. Some carriers provide limited IMEI lookup tools on their websites for customers, while others require you to contact customer service directly to check a number.

Verizon operates a device eligibility tool where you can enter an IMEI to see if the device is compatible with their network and whether there are any account-related holds. AT&T has a similar tool for checking device status. T-Mobile's process typically requires contacting their customer service team. Regional carriers and international carriers each have their own procedures. If you're verifying a phone before purchase, contacting the carrier's customer service line with the IMEI is a reliable approach that works across all carriers.

When you contact a carrier about an IMEI, customer service representatives can tell you whether the device is reported as lost, stolen, or subject to payment holds. They can also confirm whether the phone is compatible with their network's technology standards. Keep in mind that carriers cannot tell you if a phone is on another carrier's blacklist — you'd need to contact that other carrier separately.

Third-party IMEI checking services exist online, but results vary in reliability. Some services aggregate information from multiple carriers or insurance databases, while others provide limited data. The most reliable verification comes directly from the carrier that would be operating the phone. If you're buying a used phone, asking the seller to contact their carrier and confirm the IMEI is clear of any flags is a reasonable request.

Practical takeaway: Contact the carrier directly with your IMEI to verify the device isn't blacklisted. Each carrier has its own process, but customer service representatives can provide definitive information about whether your phone has account holds or is flagged as lost or stolen.

Checking IMEI Status With Insurance and Anti-Theft Databases

Beyond carrier blacklists, insurance companies and device manufacturers maintain records of devices reported as stolen or lost. These databases track phones covered under insurance policies or manufacturer protection plans. Insurance databases can reveal whether a phone has been reported missing by a previous owner and filed as an insurance claim — a critical piece of information when buying used.

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If an insurance company receives a claim for a lost or stolen device, that IMEI is typically flagged in their system and sometimes shared across the insurance industry. A phone with a valid insurance claim against it may not connect to networks even if the carrier hasn't blacklisted it, because remote wiping or service suspension protocols activated during the claim process can prevent usage.

Manufacturer anti-theft systems also use IMEI numbers as part of their security infrastructure. Apple's Activation Lock and Google's Find My Mobile services track devices through their systems. When a device is reported lost or stolen through manufacturer channels, the IMEI is recorded. Some manufacturers offer tools to verify whether a device activation status matches legitimate ownership.

Accessing insurance and anti-theft database information is more limited for the general public than carrier verification. Insurance companies don't maintain public lookup tools — verification typically requires contacting the insurance provider directly, which is practical only if you know which insurance company previously covered the phone. For used phone purchases, asking the seller for documentation that they legitimately own the phone and haven't filed an insurance claim against it is a practical verification step.

Manufacturer verification is more accessible. Apple users can check activation lock status through Apple's official website by entering the device's IMEI or serial number. This reveals whether the phone is tied to an Apple ID and whether activation lock is enabled — a security feature that prevents someone without the original owner's credentials from using the device. Google provides similar tools for Android devices on their Device Manager.

Practical takeaway: Check manufacturer activation lock status using Apple's or Google's official tools. For insurance verification when buying used phones, request documentation from the seller showing they own the device free of claims.

Understanding IMEI Format and What the Numbers Mean

The 15-digit IMEI follows a standardized international format that breaks down into meaningful sections. Understanding this structure helps you spot

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