You haven't tried Netmonitor? It shows you quickly on a map which cell your on, carrier, bssid, your location on a map, the cell's location on a map and if you leave it running, adjacent cells you've connected to, signal level logging all exportable to kml for Google Earth, test mode access and free. I'll see if I can post a screenshot. I do have signal check lite so I'll know quickly when I connect on 800 when they turn it on.
Here's the catch, of the sprint towers that I've driven past only 2 I've seen NV on, one NV tower is not a sprint tower. I've read that 800 wont be on every site because it naturally covers a larger geographic area. So now every tower I drive by is looked at.