Visible does not have any roaming agreements with anyone anywhere, including Canada. AT&T's Connected Car Plan that services your Mobley also does not have service in Canada. Assuming your Mobley continues to work after the upcoming 3G shutdown. Some older 4G devices use 3G to authenticate the connection to the tower, and then switch to 4G if available. There's been no definitive word on the Mobley's status so far, so I'm hopeful it will continue to work.
Dutch
2001 GBM Landau 34' Class A
F53 chassis, Triton V10, TST TPMS
Bigfoot Automatic Leveling System
2011 Toyota RAV4 4WD/Remco pump
ReadyBrute Elite tow bar/Blue Ox baseplate