Keepgo eSIM bundles work in the most traveled countries. Each bundle has its own coverage list. You may see a list of operators for your plan in the Countries & Networks menu on the Line's managing panel in your account - https://myaccount.keepgo.com/
You may also check the list of countries where each eSIM works here - https://www.keepgo.com/collections/prepaid-esim-data-bundles. Click on the Countries & Networks on the required eSIM bundle’s info panel to see the list of countries where it operates.