ill ask my buddy. he is one of the owners of simple mobile. btw, SM has access to the same network abilities that you would have with a tmo sim. ATT blew it and Tmo pushed them away and they had over 100,000 sims already presold...then after tmo waited and lost a lot of thier business to the likes of metro pcs and boost and cricket, becausde they thought thier flexpay was it...SM got a call asking if they were ready. they have a great contract withmthem.