This topic collects feedback for Pebble Tracker owners testing SIM cards in different countries: please comment under this topic with your experience with the different providers you tested: which ones worked and which ones didn’t.
You can buy the IoTeX officially supported SIM card on the dedicated IoTeX website, covering over 100 countries and regions.
Below is the list of alternative SIM cards tested by community members, grouped by country:
Known to work
America Movil - Telcel