On 2017-02-17 03:58:07 +0000, nospam said:

In article 2017021619553985684-savageduck1@REMOVESPAMmecom,
Savageduck wrote:

I can only tell you that while Verizon has good coverage with at least
two towers where I live, T-Mobile is mediocre and shows no towers, and
both AT&T and Sprint are poor to non-existant, also showing no local
towers. This leads me to believe that T-Mobile, At&T, and Sprint are
actually roaming in my location, using the Verizon towers.

sprint probably is, but att/tmo aren't.

AT&T coverage out here at Lake Nacimiento, West of Paso Robles, is
mostly bad to non-existant. That was my reason to not having an iPhone
until Verizon came onboard, and I seriously doubt that they are making
any effort to solidly establish their presence here in any competitive
way.
T-Mobile does have much better rural coverage than AT&T, but nowhere as
good as I get with Verizon.
As to whether or not any of them are using Verizon towers for roaming,
that is only conjecture on my part.
--
Regards,

Savageduck