Visit AT&T support and follow the instructions for an unlock code.

Call Sprint customer service at (888) 211-4727 and ask them to unlock your phone. You’ll receive an email confirming your unlock request. Once it’s complete, you can make the switch to Spectrum Mobile.

Verizon devices are locked for 60 days. After that, Verizon will automatically remove the lock. For more information, call Verizon customer service at (800) 922-0204 or visit Verizon support.

Call T-Mobile customer service at (877) 453-1304 and ask them to unlock your phone. You’ll receive an email confirming your unlock request. After 24 hours, you’ll be able to make the switch to Spectrum Mobile.