It was the Indonesian Tourism Board who took me away from the islands around Bali and showed me more of what Indonesia has to offer. I felt like I was exploring a different country as the Trip of Wonders made me explore parts of North Sumatra, Central Java and a region in Central Sulawesi: Tana Toraja.

Planning a trip to Indonesia and looking for the best prepaid SIM card in Indonesia in 2026? In this guide I will show you everything you need to know about buying a SIM card for your trip: where to buy one, how much it costs, which mobile network has the best coverage and what the best alternative eSIM is.

I have traveled to Indonesia more than 15 times and explored islands like Bali, Java, Sumatra, Kalimantan, Sulawesi and West Papua. From busy cities to remote islands, I have tested mobile networks all over the country and one thing is clear: choosing the right SIM card for traveling in Indonesia makes a huge difference for your trip.