Apple Guide 2026-08-05 Β· IMEICheck Editorial Team Β· 8 min read

iPhone IMEI Check: Complete Guide

Everything you need to know about checking an iPhone by IMEI. Learn how to verify warranty, iCloud lock, carrier status, blacklist, and refurbishment history before buying a used iPhone.

Why Check Your iPhone IMEI?

Buying a used iPhone can save you significant money, but it comes with risks. An iPhone IMEI check is the most effective way to protect yourself from fraud and ensure you're getting a genuine, usable device. Here's what an IMEI check helps you verify:

Start your check at IMEICheck iPhone Check. Need to find your IMEI? See our guide on how to find IMEI on iPhone.

How to Check iPhone IMEI

Method 1: IMEICheck iPhone Check (Recommended)

The most comprehensive method is to use IMEICheck's iPhone check service, which provides GSX-based reports:

  1. Dial *#06# on your iPhone to get the IMEI
  2. Or go to Settings β†’ General β†’ About β†’ IMEI
  3. Enter the IMEI on the IMEICheck website
  4. Receive a comprehensive report including warranty, carrier, blacklist, and activation lock status

Method 2: Apple Check Coverage (Free, Basic)

Apple offers a free warranty check at checkcoverage.apple.com:

  1. Visit checkcoverage.apple.com
  2. Enter your serial number or IMEI
  3. Complete the CAPTCHA
  4. View basic warranty status and purchase date

Note: This free check only shows warranty status and purchase date. It does not show carrier lock, blacklist, or activation lock status.

Method 3: GSX Report (Most Comprehensive)

For the most detailed information, request a GSX report through IMEICheck. The GSX report includes:

Method 4: Check in iPhone Settings

For basic information, you can check directly on the device:

  1. Go to Settings β†’ General β†’ About
  2. Check Carrier Lock (iOS 14+): "No SIM restrictions" means unlocked
  3. Check Parts and Service History (iOS 15.2+): Shows non-genuine parts
  4. Check Model Number: First letter indicates device type (M=new, F=refurbished, N=replacement)

What an iPhone IMEI Check Reveals

Device Identification

Warranty and Coverage

Carrier and Lock Status

Security Status

Understanding iPhone Model Numbers

The model number on your iPhone reveals important information about the device's origin:

Prefix Meaning
M Brand new (retail purchase)
F Apple Certified Refurbished
N Apple replacement unit (service replacement)
P Personalized (engraved)

Check the model number at Settings β†’ General β†’ About β†’ Model Number. Tap the part number to toggle between formats.

iPhone Blacklist Check

A blacklist check is essential when buying a used iPhone. If the phone has been reported lost, stolen, or has unpaid carrier bills, it will be blocked from all cellular networks. Signs of a blacklisted iPhone include:

Always run a blacklist check before purchasing. For more details, see our phone blacklist check guide.

iPhone Carrier Lock Check

Carrier-locked iPhones can only be used with SIM cards from the original carrier. To check if an iPhone is carrier-locked:

  1. Go to Settings β†’ General β†’ About β†’ Carrier Lock (iOS 14+)
  2. If it says "No SIM restrictions," the phone is unlocked
  3. If it shows a carrier name or "SIM locked," the phone is locked

For more details, see our SIM lock check guide.

Tips for Buying a Used iPhone

  1. Run a GSX report. This is the most comprehensive check available
  2. Check Activation Lock. A locked iPhone is useless without the original Apple ID
  3. Verify the model number. M=new, F=refurbished, N=replacement
  4. Check Parts and Service History. Look for non-genuine parts
  5. Test Face ID or Touch ID. Component replacement can disable these
  6. Check battery health. Should be above 80% for a device claimed to be in good condition
  7. Verify the IMEI matches the packaging. Mismatched numbers indicate tampering
  8. Use a protected payment method. Always use PayPal, credit card, or platform-protected payment

For more tips, see our comprehensive used phone buying guide.

Frequently Asked Questions

How to check iPhone IMEI?

To check an iPhone IMEI, dial *#06# or go to Settings > General > About > IMEI to get the 15-digit number. Then enter it into an online iPhone IMEI check service like IMEICheck. The check returns device model, warranty status, iCloud activation lock, carrier lock, blacklist status, and GSX report data.

What can iPhone IMEI tell you?

An iPhone IMEI check can reveal the device model, storage capacity, color, purchase date, warranty and AppleCare+ status, activation lock status, carrier lock status, original carrier, blacklist status, repair history, and whether the device is a replacement or refurbished unit through GSX data.

Is iPhone IMEI check free?

Apple offers a free Check Coverage page (checkcoverage.apple.com) that shows basic warranty status. However, comprehensive checks that include GSX reports, iCloud activation lock, carrier lock, and repair history require a paid service like IMEICheck. The free page does not show SIM lock, blacklist, or activation lock status.

Can iPhone IMEI check detect blacklist?

Yes, an iPhone IMEI check can detect if the device is blacklisted. The check queries the GSMA global blacklist database, which tracks phones reported lost, stolen, or with unpaid carrier bills. A blacklisted iPhone cannot connect to any cellular network worldwide.

Conclusion

An iPhone IMEI check is the single most important step when buying a used Apple device. By verifying the IMEI through a GSX-based service, you can confirm authenticity, warranty status, activation lock, carrier lock, and blacklist statusβ€”all critical information that protects you from fraud and ensures a safe purchase. The small cost of an IMEI check is negligible compared to the hundreds or thousands of dollars you could lose by buying a stolen, locked, or counterfeit iPhone.

Check your iPhone now at IMEICheck iPhone Check.

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