Phone Unlock Checker: Is Your Phone Eligible?
Pick your carrier and answer three questions. The checker tells you if your phone qualifies for a carrier unlock today, how many days remain if it does not, and how to ask. It covers 15 US carriers and brands. Rules checked October 2026.
Nothing you enter leaves your browser. Carriers change these rules, so confirm with your carrier before you plan around a date.
How a phone unlock checker works
A carrier unlock removes the software lock that ties a phone to one network. Only the carrier that sold or financed the phone can remove it. No app or website can do it for you, and tools that claim otherwise risk your data and your warranty. What you can do is check the carrier’s published rules and request the unlock the right way.
This phone unlock checker applies each carrier’s published rules to your answers. Most carriers use the same four tests: time on the line, payment status, account standing and whether the phone was reported lost or stolen. Postpaid carriers usually unlock when the phone is paid off. Prepaid carriers usually want a set number of days of paid service.
Carrier unlock rules at a glance
| Carrier | Typical wait | Paid off first? |
|---|---|---|
| Verizon (postpaid) | None | Yes |
| AT&T (postpaid) | More than 60 days | Yes |
| T-Mobile (postpaid) | 40 days | Yes |
| Mint Mobile | 60 days | No |
| Xfinity Mobile and Spectrum Mobile | More than 60 days | Yes |
| Metro, Cricket, Boost prepaid | 365 days | Zero balance |
The full carrier-by-carrier list sits in our guide, how to unlock a phone.
Before you switch carriers
An unlocked phone is only half of a switch. Check that the phone supports the new carrier’s network with the device check. Then move your number with the transfer PIN lookup. Do not cancel the old line before the port finishes.
Federal rules also protect your right to keep your number. The FCC explains them in its consumer guide.
What blocks a phone unlock
Most denials come from a short list of causes. A remaining device balance is the most common. A phone reported lost or stolen is blocked at every carrier. A line that is too new, an account that is past due and a phone bought from a third party also stop the request. If the phone came from a store other than your carrier, ask that store for the original carrier and request the unlock there.
Military customers and people who travel often have extra options at some carriers. Metro, for example, lists a military support line. Ask your carrier about deployment or travel exceptions before you pay for anything.
Run the phone unlock checker again after any change to your plan, your balance or your activation date. A new answer can arrive in a day.
After the unlock
Restart the phone with the new carrier’s SIM card inserted. If the phone asks for an unlock code, enter the one your carrier sent. Newer iPhones and Android phones usually unlock without a code once the carrier releases the lock.
Phone unlock questions
Is this phone unlock checker accurate?
It applies each carrier’s published rules. A carrier can still deny a request for reasons only it can see, so treat the answer as likely, not guaranteed.
Can software unlock my phone?
No. The carrier holds the lock, and only the carrier can release it. Be wary of any paid unlock app.
Is a carrier unlock free?
Yes, at the carriers listed here. A carrier that charges you to unlock a phone you have paid for is the exception.
Does unlocking cancel my service?
No. Your service continues until you cancel it.
What if the checker says I am not eligible?
Read the reason, wait out the remaining days or pay off the balance, then run the check again. If you think the rules were applied wrongly, call your carrier.
Why does the answer say likely?
Carriers can also deny an unlock for fraud flags or account problems that only they can see.