As I said in my original post, there's a hidden app in the iPhone which gives me the "Base ID", which Verizon tech support tells me identifies the tower/transceiver with which the device is communicating.  So I already have this information.

The Base ID is a number assigned by Verizon and has no relationship to the FCC data on the tower, or the license which Verizon holds to use the frequencies they use, or to the location of the tower.

So I have what you call the "tower ID" numbers from my iPhone, and I have, or can easily deduce, the exact location - latitude, longitude, tower height, tower elevation - of all, or many of the Verizon towers in the area from crowdsourced data available on cellreception.com.  What I don't have is a way to correlate these two. This is what I need, and why I posted my question here.

I hope this makes my question clear.  I thought I'd made it clear in my original post, but perhaps not.