>> How do you determine which coverage you have in an area, and who it
>> comes from?
>
>You have to read the SID numbers off the phone's hidden data pages.
>Sometimes they'll let you see them buried into the PHONE STATUS pages.
>
>On Motorola phones, you key in ##DEBUG rapidly and the G doesn't show.

I tried this and it doesn't work on my (T-Mobile) Motorola RAZR V3,
unless I'm misunderstanding the instructions. The 4 does show.

I can, however, go to Settings | Network | Available Networks, and
see a list: AT&T and T-Mobile. AT&T is given as 310-410 and T-Mobile
is 310-260. What are these numbers? Cell tower numbers? (I'm in
Fort Worth).