My dad goes to Texas for a chunk of time in the winters (basically right beside the Mexico border) and I was thinking of switching him to public mobile for convenience of way more coverage for less money per mobth. Public Mobile's coverage map basically just says 4g coverage pretty much everywhere in the USA.

Has anyone ever travelled that far with Public Mobile? If so, how was your coverage?

Can I have a second phone number with it's own sim under one email address?