Carrier unlock policies for repair and buyback shops
Each page lists our services for that carrier, live from The STACKS App, and each carrier's own rules as published in 2026, for reference: the waiting clock, paid in full, how to check lock status and the free route for the owner. The full menu is on the services page.
US carriers
AT&T
Paid off unlockPremium unlockActive line unlockSold device unlock+1 more
C Spire
Paid off unlockPremium unlock
Cricket and Tracfone / Straight Talk
Paid off unlockPremium unlock
Spectrum
Paid off unlockPremium unlock
T-Mobile
Paid off unlockPremium unlock
US Cellular
Paid off unlock
Verizon
Paid off unlockPremium unlock
Visible
Paid off unlockPremium unlock
UK networks
EE (UK)
Paid off unlockPremium unlock
O2 / Tesco (UK)
Paid off unlock
Three (UK)
Paid off unlock
Vodafone (UK)
Paid off unlockPremium unlock
Then see what the lock is worth: locked vs unlocked value, the calculator, and financed and blacklisted phones.