I went to TJ on Nov. 30th to Dec. 3rd and I have service with Alltel. I could use my phone and not be roaming while I was in the hotel room. I was pool side though. On the other hand my Aunt has service with Verizon and she didn't have service at all. She had even called them to make sure she would be able to use her phone while she was there and also did the *228 and followed the instructions and still didn't have service. So, I guess it all depends on the service that you have...