Buying a used iPhone can save you money, but there's one thing you should always check before handing over your cash: whether the phone is blacklisted.
A blacklisted iPhone may look and function normally, but it can be blocked from connecting to cellular networks. If you're purchasing a used device, checking its blacklist status could save you from an expensive mistake.
What Does "Blacklisted" Mean?
A blacklisted iPhone is a device that has been reported as lost, stolen, involved in fraud, or has an unpaid carrier balance. Carriers can add the phone's unique IMEI number to a blacklist database, preventing it from being activated on many cellular networks.
Even though a blacklisted iPhone can still connect to Wi-Fi and run apps, it may not be able to make calls, send texts, or use mobile data.
How to Find an iPhone's IMEI Number
Before checking blacklist status, you'll need the phone's IMEI number.
You can find it by:
- Opening Settings > General > About
- Looking for the IMEI section at the bottom
- Dialing *#06# on the phone app to get an IMEI
- Checking the SIM tray on some older models
- Viewing the original box if available
The IMEI is a unique identifier assigned to every mobile device.
How to Check if an iPhone Is Blacklisted
Method 1: Contact the Carrier
One of the most reliable methods is contacting the carrier that originally sold the device. They may be able to tell you whether the phone has been reported lost, stolen, or has an unpaid balance.
Method 2: Use an IMEI Checker
Many online IMEI checking services can provide information about:
- Blacklist status
- Carrier lock status
- Activation lock status
- Warranty information
- Device model details
When using an IMEI checker, make sure you use a reputable service.
Method 3: Test Cellular Service
If possible, insert a working SIM card into the phone and verify that:
- Calls can be made
- Text messages send successfully
- Mobile data functions properly
A phone that cannot connect to a network may have a blacklist issue, although other problems can cause similar symptoms.
Signs an iPhone May Be Blacklisted
Watch out for these warning signs when buying a used iPhone:
- The seller refuses to provide the IMEI number.
- The price seems unusually low.
- The device shows "No Service" even with a working SIM card.
- The seller cannot explain the phone's history.
- The phone is still linked to someone else's Apple ID.
These don't always mean the phone is blacklisted, but they should prompt additional verification.
Can a Blacklisted iPhone Be Unblacklisted?
Sometimes.
If the blacklist was caused by an error, resolved payment issue, or recovered lost device, the original owner may be able to work with the carrier to remove the blacklist.
However, if the phone was reported stolen, carriers generally will not remove the blacklist without proper documentation.
Should You Buy a Blacklisted iPhone?
In most cases, no.
While a blacklisted iPhone may still function on Wi-Fi, its inability to reliably connect to cellular networks can significantly reduce its value and usefulness.
Before purchasing any used iPhone, always verify its IMEI and blacklist status. Spending a few minutes checking the device can help you avoid a costly mistake.