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An IMEI blacklist is a database of phone identifiers, called IMEI numbers, that carriers block from connecting to their networks, most often because the phone was reported lost or stolen or because its device payment balance was not paid. Carriers share lost and stolen reports through the GSMA Device Registry, so a phone blocked by one U.S. carrier is usually blocked by others too. Unpaid balance flags are often limited to the carrier that financed the phone. Blacklist status changes what a phone can be sold for: phones with an unpaid balance can be sold by the account holder at a reduced offer, while phones reported lost or stolen are not bought. Sell Blacklisted iPhone for Cash explains the offer.
- What it blocks: calls, texts and cellular data on participating networks.
- What it does not block: Wi-Fi, apps and the phone's other functions.
- Main reasons: lost or stolen reports, unpaid device balances, insurance claims and fraud.
- Who clears it: the carrier that added the flag, at the account holder's request.
What is the IMEI blacklist?
The IMEI blacklist is a set of shared and carrier-specific records that list phones barred from cellular service. Each phone has a 15-digit International Mobile Equipment Identity (IMEI) number, and many iPhones also have a second IMEI for eSIM. When a phone connects to a network, the carrier checks its IMEI against these records. A listed phone cannot use that carrier's cellular service.
| Record | Operated by | Typical scope |
|---|---|---|
| GSMA Device Registry | GSMA, the global mobile industry association | Shared among participating carriers in many countries |
| Carrier device records | Each carrier | That carrier's network, including financial flags |
U.S. carriers agreed in 2012, through the wireless industry association CTIA, to share lost and stolen phone reports. CTIA's Stolen Phone Checker lets anyone check whether a device has been reported lost or stolen.
Who adds phones to it?
Carriers add phones to the blacklist, usually after one of 4 events:
- Lost or stolen report: the account holder reports the phone lost or stolen to the carrier.
- Unpaid device balance: the account closes or the device payment agreement defaults with money still owed.
- Insurance claim: an insurer replaces a phone claimed as lost or stolen, and the original is blocked.
- Fraud: the phone was bought with stolen identity or payment details.
Apple does not add phones to carrier blacklists. Apple's Activation Lock is a separate system linked to the Apple Account. Activation Lock vs Carrier Lock vs Blacklist: The Differences explains the 3 locks.
Can a blacklisted iPhone be cleared?
A blacklisted iPhone can be cleared only by the carrier that added the flag, and only when the reason is resolved. The table lists common cases.
| Reason for the flag | How it is cleared |
|---|---|
| Unpaid device balance | The account holder pays the balance, and the carrier removes the flag |
| Lost or stolen report, phone recovered by the owner | The owner contacts the carrier with proof of ownership to remove the report |
| Insurance claim | Usually permanent; the insurer owns the original phone |
| Fraud | Usually permanent |
Third-party services that claim to remove blacklist entries do not control carrier records. Only the carrier can remove a flag it placed.
How does a blacklist affect selling?
A blacklist affects selling in 3 ways, depending on the reason:
| IMEI status | Sale result |
|---|---|
| Clean | Full offer for the model and condition |
| Unpaid balance flag | Reduced offer, from the account holder only; the balance stays with the seller |
| Lost or stolen report | Not bought |
Buybacks check every IMEI during testing. A phone that arrives with a lost or stolen report is not bought. Can You Sell a Blacklisted iPhone? Unpaid Balance vs Stolen explains the difference in detail.
How do I check if my iPhone is blacklisted?
Check whether an iPhone is blacklisted in 3 steps:
- Find the IMEI in Settings > General > About, or dial *#06#.
- Enter it in CTIA's Stolen Phone Checker at stolenphonechecker.org, which shows lost or stolen reports.
- Contact the carrier that sold the phone to check for unpaid balance flags.
The Stolen Phone Checker shows reports shared through the GSMA Device Registry. It may not show carrier-specific financial flags. How to Check an iPhone IMEI Before You Sell It covers each source.
What does a blacklisted iPhone still do?
A blacklisted iPhone still works on Wi-Fi. It can browse, run apps, take photos, use FaceTime and iMessage over Wi-Fi and receive iOS updates. It cannot make cellular calls, send cellular texts or use cellular data on carriers that honor the block. Emergency calls to 911 are generally still allowed under FCC rules.
Does a blacklist travel with the phone to other carriers?
A lost or stolen report usually travels to other carriers, because participating carriers share those reports through the GSMA Device Registry. An unpaid balance flag often applies only to the carrier that financed the phone, although some carriers also share financial flags. A phone with an unpaid balance flag may connect to a different carrier, but its resale value still reflects the flag.
Is a blacklist the same as a carrier lock?
A blacklist is not the same as a carrier lock. A carrier lock restricts a phone to one carrier's SIM cards until the carrier unlocks it, while a blacklist blocks the phone from service. A carrier-locked phone works normally on its own carrier. A blacklisted phone has no cellular service on participating networks. The 2 can apply at once, for example to a financed phone with an unpaid balance.
Can I sell an iPhone with an unpaid balance?
An iPhone with an unpaid carrier balance can be sold by the account holder at a reduced offer, and the remaining balance stays on the seller's carrier account. Paying the balance first usually removes the flag and raises the offer. Compare the full offer minus the payoff with the reduced offer to choose. How to Sell an iPhone That Is Not Paid Off explains both options.
What should I do if I bought a blacklisted iPhone?
When a used iPhone turns out to be blacklisted, contact the seller first, because the original account holder can resolve an unpaid balance or confirm a recovered phone with the carrier. A phone reported stolen belongs to the person who reported it. Platforms such as eBay and Swappa offer buyer protection for misrepresented phones. Bought a Used iPhone That Is Locked? What to Do covers each case.
Why do buybacks refuse lost or stolen phones?
Buybacks refuse lost or stolen phones for 3 reasons: the phone belongs to the person who reported it, it cannot be resold for cellular use, and many states and cities require secondhand electronics buyers to record sellers and devices to help return stolen property. Refusing these phones protects owners and removes the incentive for theft.
How long does a blacklist entry last?
A blacklist entry lasts until the carrier removes it. Lost and stolen reports usually stay in place indefinitely unless the owner recovers the phone and asks for removal. Unpaid balance flags are usually removed after the balance is paid, often within a few business days. Check the status again after the carrier confirms removal.
Does erasing or restoring an iPhone clear the blacklist?
Erasing or restoring an iPhone does not clear the blacklist, because the block is stored in carrier and registry records linked to the IMEI, not on the phone. The IMEI is fixed in the phone's hardware. Changing an IMEI is illegal in many countries and is not a legitimate way to clear a block.
How do I protect myself when buying a used iPhone?
Protect yourself when buying a used iPhone with 4 checks before payment:
- Check the IMEI in CTIA's Stolen Phone Checker.
- Confirm the phone is erased and shows the Hello screen, with no Activation Lock.
- Insert a SIM card or activate an eSIM and make a test call.
- Ask for the original receipt or carrier account record.
Clean IMEI vs Bad IMEI: What Buyers Check explains what each result means.
What if my iPhone is lost or stolen?
When an iPhone is lost or stolen, report it to the carrier, which adds it to the blacklist, and mark it as lost in the Find My app or at icloud.com/find, which locks it with Activation Lock. File a police report when the phone was stolen; insurers and carriers often ask for the report number. A recovered phone can be cleared later by the owner.
Where do I find the IMEI on an iPhone?
The IMEI appears in 5 places on an iPhone and its records:
| Location | How to find it |
|---|---|
| Settings | Settings > General > About, under IMEI and, on dual-SIM models, IMEI2 |
| Dialer | Dial *#06# to show the IMEI on screen |
| SIM tray | Printed on the tray of some models with a physical SIM |
| Original box | Printed on the barcode label |
| Apple Account | account.apple.com > Devices > select the iPhone |
Record both IMEIs when the phone shows 2, because a check of either number can show a flag.
What is the difference between blacklisted and blocked by Activation Lock?
A blacklisted phone is blocked by carriers from cellular service, while an Activation Locked phone is blocked by Apple from setup until the owner's Apple Account password is entered. A blacklisted phone with no Activation Lock can still be set up and used on Wi-Fi. An Activation Locked phone with a clean IMEI cannot be set up at all by a new owner. Buybacks check both during testing.
What records should I keep to prove a phone is mine?
Keep 3 records to prove a phone is yours: the original receipt or carrier invoice listing the IMEI or serial number, the carrier account record showing the device on your line and the Apple Account device list showing the phone. These records help clear a mistaken flag and support an Activation Lock support request.
Can a mistaken blacklist flag be removed?
A mistaken blacklist flag, such as a report filed on the wrong IMEI or a balance that was already paid, can be removed by the carrier that placed it. Contact the carrier's customer service with the IMEI, the account number and proof of payment or ownership, and ask for written confirmation of the removal. Check the status again in the Stolen Phone Checker after 2–3 business days.
Frequently asked questions about IMEI blacklists
What does it mean if an iPhone is blacklisted?
A blacklisted iPhone has its IMEI listed in a carrier or shared database that blocks it from cellular service, most often after a lost or stolen report or an unpaid device balance. The phone still works on Wi-Fi for apps, photos and internet use, but it cannot make cellular calls or use cellular data on participating networks.
Can a blacklisted iPhone be unblocked?
A blacklisted iPhone can be unblocked only by the carrier that added the flag. An unpaid balance flag is usually removed after the account holder pays the balance. A lost or stolen report can be removed when the owner recovers the phone and contacts the carrier. Insurance claim and fraud flags are usually permanent.
How can I check if an iPhone is blacklisted for free?
Find the IMEI in Settings > General > About or by dialing *#06#, then enter it in CTIA's Stolen Phone Checker at stolenphonechecker.org, which shows lost or stolen reports. Contact the carrier that sold the phone to check for unpaid balance flags, which may not appear in the shared lost and stolen database.
Can I sell a blacklisted iPhone?
An iPhone flagged for an unpaid carrier balance can be sold by the account holder at a reduced offer, with the balance staying on the seller's account. An iPhone reported lost or stolen is not bought, because it belongs to the person who reported it. Buybacks check every IMEI during testing to confirm the status.
Does resetting an iPhone remove it from the blacklist?
Resetting an iPhone does not remove it from the blacklist, because the block is stored in carrier and registry records linked to the IMEI, not on the phone. Only the carrier that added the flag can remove it, after the account holder resolves the reason, such as paying a balance or confirming a recovered phone.
Sources and references
- CTIA: Stolen Phone Checker.
- GSMA: Device Registry overview.
- Federal Communications Commission (FCC): consumer guidance on stolen and lost wireless devices.