To flesh out the above a bit: you can get a cheap smart phone, not sign up for a phone plan of any sort, and still be able to use it with the LeafSpy app via Bluetooth and the OBDII port reader mentioned in my signature.. If you have WiFi, you can connect to the internet with it that way, and even make phone calls while in WiFi range if you are determined enough. The car should be able to update charging stations now that you have registered with Nissan Connect (aka "Nissan Never Connects").
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.