eSIM for Indonesia

How to install your Indonesia eSIM in 3 steps

1. Buy your plan. Buy your Indonesia eSIM online before departure - you'll need working Wi-Fi to download it, so this step doesn't work once you're airborne or standing at the arrivals hall with no signal.
2. Scan and install on Wi-Fi. On iPhone, go to Settings > Cellular > Add eSIM and scan the QR code from your order confirmation; on Android, it's Settings > Network & Internet > SIM Manager > Add eSIM. Do this at home, at your departure gate, or on airport Wi-Fi at a layover such as Singapore Changi or Kuala Lumpur - not after you've already touched down at Ngurah Rai (Denpasar) or Soekarno-Hatta (Jakarta).
3. Activate on arrival. Once installed, leave the eSIM line off until you land, then switch it on: go into your eSIM's cellular settings and enable data roaming for that line specifically, since Indonesian networks are technically foreign to a travel eSIM profile. Within a few minutes of touching down at Ngurah Rai, Soekarno-Hatta, or Juanda (Surabaya), your phone should pick up a local signal automatically - no counter visit, no queue, no handing over your passport at an airport SIM kiosk.

Keep your home SIM in the phone if it's physical - the eSIM runs alongside it, so you keep your original number for calls and SMS while data routes through the Indonesian eSIM profile. If you're staying beyond a short holiday, note that Indonesia's IMEI rules (below) only apply to physical local SIMs, not to eSIM data profiles.

Mobile network coverage in Indonesia

Jakarta, Bali and the other big cities

Telkomsel holds the largest share of subscribers nationwide and pairs that with strong urban performance, but XL Axiata and Indosat Ooredoo Hutchison are the ones to watch in the cities - both are strongest around Jakarta, Surabaya, and Bali's tourist belt (Seminyak, Kuta, Ubud town centre). Early 5G has switched on in pockets of Jakarta, Denpasar, and Nusa Dua, plus Surabaya, Medan, Makassar, and Balikpapan, and XL has been rolling out a nationwide 5G build with ZTE that it's promoting as the country's fastest network - but coverage is still patchy enough that most trips will run on 4G LTE from start to finish, which is plenty for maps, messaging, and video calls.

Rural areas, coasts and outer islands

Telkomsel is the network built for the archipelago - its 4G LTE footprint reaches close to the entire population, including the eastern provinces of Papua and Maluku where rival networks barely register. XL Axiata does well along coastal and beach tourist zones, which is useful if your itinerary leans toward Lombok's coastline rather than Jakarta's business districts. The trade-off is real dead zones: Nusa Penida has significant gaps once you leave the main harbour towns, Raja Ampat's dive sites are effectively offline, and Bali's interior rice terraces around Ubud can lose signal despite the town itself having solid coverage.

Getting between islands and around town

Indonesia is 17,000-plus islands, so connectivity isn't a single continuous bubble the way it is in a compact country - ferry crossings between islands routinely drop to no signal at all, and it's worth telling anyone you're travelling with that you may go quiet mid-crossing. The Gili Islands (Trawangan, Air, and Meno) now all carry usable 4G, though expect slowdowns during peak evening hours when every beach bar's worth of visitors is streaming at once. In Labuan Bajo, the town itself has coverage for planning and messages, but Komodo Island and boat excursions between islands go dark, so download offline maps before you board.

How much data do you need for your trip to Indonesia?

If your route includes ferry-hopping between Bali, the Gilis, and Lombok, or a Labuan Bajo boat trip, lean toward the higher end - you'll burn extra data re-syncing offline maps and messages every time you regain signal after a dead stretch.

eSIM vs. roaming vs. a local SIM in Indonesia

A local SIM starts to make more sense for stays past the 90-day mark: Indonesia requires visitors who register a local SIM and stay over 90 days to register their phone's IMEI at the airport (free under a set device-value threshold) or at customs within 60 days, or the phone loses its duty exemption. Short holidays under 90 days don't trigger this at all, which is one reason most travellers find an eSIM the simpler route.

Tips for staying connected in Indonesia

• Save Indonesia's emergency numbers before you go: 112 works as a general first-responder line nationwide, alongside 110 for police, 118-119 for ambulance, 113 for fire, and 115 for search and rescue if you're diving or hiking somewhere remote.
• Declare any foreign phone in the customs section of the All Indonesia Arrival Card on entry - this is separate from the 90-day IMEI registration rule and applies regardless of which SIM or eSIM you end up using.
• Download offline maps for Raja Ampat, Komodo boat routes, and inter-island ferries before you leave port - these are structural dead zones, not just weak-signal patches, and no single network fixes them.
• If your route runs through eastern Indonesia (Papua, Maluku) or deep rural areas, lean on Telkomsel's footprint rather than assuming XL or Indosat will follow you there.
• Around Ubud, don't be surprised if signal drops as you head into the rice terraces even though the town centre is well covered - it's a known local quirk, not a fault with your eSIM.
• Planning a wider Southeast Asia loop from Bali? Check our Asia eSIM options for coverage across your next stops.

Traveling beyond Indonesia?

If Indonesia is one stop on a longer Southeast Asia or Pacific itinerary, you can grab an eSIM for Malaysia or an eSIM for Singapore for onward legs through Kuala Lumpur or Changi, an eSIM for Thailand if you're continuing north, or a eSIM for Philippines and eSIM for Vietnam for other archipelago and mainland detours. Heading further south instead, an eSIM for Australia covers the other side of the Arafura Sea. For a single plan across multiple stops in the region, our Asia eSIM is worth comparing against buying country by country.