A:AnswerYes, all companies are required, under the number portability rule as governed by the Federal Communication Commission (FCC) to transfer numbers.
A:AnswerYes. if you already have a nano sims card just put it in the new phone. if your sims card is larger you can call into ATT and have them activate it at no charge. Ours was shipped with a nano card which was great since our older phone had the larger sims card