ChiTownHarry said:
If you received the phone from a US carrier (AT&T, Verizon, T-Mobile,etc) it is likely locked. We are with AT&T and if the phone is paid for, you can contact AT&T to have it unlocked. For more information
AT&T unlock device information All Verizon LTE phones are sold unlocked. This is due to certain spectrum allocated to them by the FCC that is designated for open source and they are not allowed to lock their devices using that spectrum.
Sprint will unlock your device for international sim use once the device has been on your account for 90 days.
