Newly proposed FCC rules would require carriers to unlock phones after 60 days, even if they are on payment plans that have unresolved balances.
AT&T and T-Mobile have both pushed back on the effort, though T-Mobile has been even more vocal claiming the FCC doesn’t have the right to authorize this change and that it even implied this change could lead the uncarrier to abandon payment plans altogether.
Verizon supports the effort, though largely because it already activates its phones within 60 days due to a prior agreement with the FCC.


https://www.androidauthority.com/fcc-60-day-unlock-tmo-3483642/