Scott,

There are websites that are suppose to tell you where the towers are and who the providers is but I found them very inaccurate. I drove around looking for them and at the same time watch the signal strength on the phone. The bars are not accurate enough need to look at the physical strength. Also you can tell who the provider of the antenna is in the network settings on the phone (the signal strength is also there). It was a good way to spend a hot summer afternoon.