for those who bought 5S full price when it first came out, how did you unlock it?

[Spencerdl]

Sorry for my ignorance, but I always see conflicting information on this subject. So if I get my sprint iPhone 5s unlocked, can i use it on At&t or any other sim based service?

Thank you

YES, as well as CDMA carriers also

 

[BreakingKayfabe]

YES, as well as CDMA carriers also

If it's a phone for Sprint they wouldn't activate it on Verizon if it was unlocked or not.