Service? Not sure if you have an answer for this question or not.... but I live on the East Coast and have Boost Unlimited Mobile Service. I currently use a Sprint LG Rumor on this line. Everything work perfect except outgoing picture mail, and mobile web. Sometimes it works and sometimes it doesn't. I don't have any problems receiving incoming picture mail, text messages, or calls. Evening sending text message or placing out-bound calls are no problem. That is my only two issues that I have, other than that it works like a charm! I really would love to be able to use an LG Envy on my boost mobile unlimited account......I love having the QWERTY keyboard on the LG Rumor, but would like a bigger keyboard! I know I probably send about 1500 text messages a month!!! LOL