IMEI Checker User Guide – Easily Verify Your Phone’s Serial Number

What Is an IMEI Number?

IMEI (International Mobile Equipment Identity) is a unique 15‑digit code assigned to every mobile phone. The first 14 digits contain device information (brand, model, etc.), and the last digit is a check digit calculated using the Luhn algorithm. With an IMEI, you can check a device’s authenticity, warranty status, or even whether it has been reported stolen – for example, an iPhone IMEI like 352066060926230.

How to Use This IMEI Checker

Just three steps to quickly see if your IMEI number is valid:

1. Paste or type your 15‑digit IMEI into the input field (you can ignore spaces or hyphens).
2. Click the “Check” button.
3. Read the result – the tool will tell you whether the format is correct and if the check digit matches.

You can click on the example numbers to try it out. If you enter an invalid number (e.g., wrong length or incorrect check digit), the tool will give you a clear error message.

This IMEI Checker is completely free, no registration required – ideal for phone buyers, second‑hand traders, and repair shops.

Frequently Asked Questions

1. Does a valid IMEI guarantee that my phone is genuine?

This tool checks whether the IMEI structure and check digit are mathematically correct. A “valid” result means the number is properly formed. However, to confirm if the phone is authentic or not stolen, you should additionally query official databases (e.g., GSMA or the brand’s own website).

2. Why does my IMEI show as invalid?

Possible reasons: the length is not exactly 15 digits, it contains non‑numeric characters, or the check digit does not match the Luhn calculation. Double‑check your input, or try one of the sample numbers to ensure the tool is working correctly.

3. Can this tool validate IMEIs in bulk?

This page is designed for single IMEI checks. For bulk needs, feel free to contact us.

4. What’s the difference between IMEI and MEID?

IMEI is used for GSM/WCDMA/LTE devices and is 15 digits long. MEID is for CDMA devices and is a 14‑digit hexadecimal number. This tool only supports standard IMEI.

5. Do I have to pay for this?

Not at all – it’s completely free. OkeyTool is committed to providing practical online tools for everyday use.

If you have other questions or find any issues, please reach out via the contact information at the bottom of the site. Thanks for using our IMEI Checker!