I have tmobile. Used it all over the island for three weeks. Didn't use the phone much, but had it with us everywhere we went. Made most calls through facebook and whatsapp. Got home, received bill for the three weeks, and it was like four bucks!! Tmobile is only .25/minute. Last year, did the same, but needed to use the phone almost every day to check in on our mothers. The total for three weeks then amounted to under Fifty Bucks.