Also phones (and towers?) in border areas have some logic to avoid roaming onto the other country’s network.
This leads to lots of misconceptions too.
With a local Rogers SIM from a high building in Toronto, my phone will only see Canadian networks on a network scan. But when I put in an EU SIM, same phone and same place, a network scan will see several US networks and even prefer connecting to them (probably cheaper roaming rates), even if the connection is ultra-weak.
Feels like there’s some geo-fencing preferencing, or maybe time-distance bounding going on.
This leads to lots of misconceptions too.
With a local Rogers SIM from a high building in Toronto, my phone will only see Canadian networks on a network scan. But when I put in an EU SIM, same phone and same place, a network scan will see several US networks and even prefer connecting to them (probably cheaper roaming rates), even if the connection is ultra-weak.
Feels like there’s some geo-fencing preferencing, or maybe time-distance bounding going on.