I have seen a lot of interest in the past from folks looking to see
which provider provides the best coverage for where they work, live, or
both.
In the US - there are several on-line resources for finding tower sites
for lease. You can use the
FCC database (Google Antenna Structure
Registration) or you can use a site like cellreception.com which uses
Google maps. Right now I am working on exporting the
FCC database to
Google Earth.
Scott M. Quitadamo
Clear Channel Vertical RE