http://www.androidpolice.com/2015/0...u-sim-unlock-your-phone-heres-the-fine-print/
As of February 11th, the CTIA (basically, the wireless industry's special interest group) is laying out a set of phone unlocking (that is, SIM/network unlocking) principles that AT&T, Verizon, T-Mobile, Sprint, and US Cellular will abide by in the wake of the congressional un-banning of phone unlocking.
Rest of the article is at the link
As of February 11th, the CTIA (basically, the wireless industry's special interest group) is laying out a set of phone unlocking (that is, SIM/network unlocking) principles that AT&T, Verizon, T-Mobile, Sprint, and US Cellular will abide by in the wake of the congressional un-banning of phone unlocking.
Rest of the article is at the link