eSIMCard offers plans covering several countries in South East Asia, including Cambodia, Indonesia, Laos, Malaysia, Philippines, Singapore, Thailand, and Vietnam. The “eSIM Data For in Asia” and “Unlimited eSIM Data For in Global” plans specifically cover Indonesia, Malaysia, Singapore, Thailand, and Vietnam. Several “Global” plans, such as “Global Max Data for” and “eSIM, , , Global, Unthrottled”, provide coverage for Cambodia, Indonesia, Laos, Malaysia, Philippines, Singapore, Thailand, and Vietnam, but also extend to regions outside of South East Asia. It's important to note that coverage areas may vary between plans, as some include a wider range of global destinations.