Hello @jamesgreenhalge ,
You'll want to make sure your login's MFA setup will be available in the area you go to. If you only have phone call or SMS for your MFA, then you'll want to make sure your mobile device will have a data connection so those methods can activate. Otherwise, I'd advise resetting and changing your MFA setup to one of the authenticator apps available, since those can be used anywhere you have an internet connection - data or wifi.
See also:
MFA FAQ
... View more