When I bought it,It is a AT&T prepaid phone,but then I just put my sim card in it and used it with my AT&T account, so I think that a prepaid you might be able to use it with T-MOBILE not sure might want to make sure though.
verified means your phone number with listia .. This kinda lets us members know your not a spammer :) and thank you yes I am with AT&T so I do use a sim :)