I love using to Cingular Wireless. Because of some problems in the past, I am rating it as good (3 stars). However, that rating may change in the future, as they were recently combined with AT & T and I understand that they are adding more and more towers everyday. I have seen it on my own phone when the service I use everyday says USA49. Makes no sense to me, and when I called about it, they didn't even know about it.