Disclaimer: The prices and information presented on this page reflect a snapshot at the time of research and may change at any time without prior notice.
Aisha
09 March 2026
Singtel customers planning a trip to Indonesia have several roaming options available, from pay-per-day ReadyRoam passes to dedicated DataRoam bundles and UnlimitedRoam plans. Indonesia is one of the more complex destinations for Singapore travellers because the archipelago spans over 17,000 islands across five time zones, and network coverage quality varies significantly between major cities, tourist islands like Bali and Lombok, and more remote areas. This guide covers how Singtel roaming works in Indonesia, which local networks you connect to, how to read the pricing structure, and when a dedicated travel eSIM offers a more predictable alternative.
When you activate Singtel roaming in Indonesia, your device connects to one of Singtel's local network partners. Indonesia's mobile market includes Telkomsel (the largest operator with the widest national footprint), Indosat Ooredoo Hutchison (formed from the merger of Indosat and Hutchison 3 Indonesia), XL Axiata, Smartfren, and Hutchison 3. Singtel's roaming agreements cover multiple partners, and your device will typically latch onto the strongest available signal at any given location.
Telkomsel is the most commonly used roaming partner for Singtel in Indonesia, given its extensive coverage across both Java and the outer islands. For travel to Bali, Lombok, Komodo, or Sumatra, Telkomsel provides the most consistent experience. In more remote areas, including parts of Kalimantan, Sulawesi, and eastern Indonesia, coverage from any operator becomes less predictable.
Roaming is available on Singtel postpaid plans. Prepaid hi! SIM users have access to DataRoam via the hi!App. Auto-renewal applies when data is exhausted, so monitoring usage through the My Singtel app is recommended.
Singtel offers several roaming structures for Indonesia. The exact plan names and pricing change periodically. Always verify current rates in the My Singtel app before departure.
Exact pricing for all plans should be confirmed in the My Singtel app before departure, as rates change regularly and plan availability depends on your current Singtel subscription tier.
Activate roaming before you fly. Log into the My Singtel app and ensure international roaming is enabled on your account. Selecting and pre-purchasing a ReadyRoam plan before boarding ensures your data is active when you land at Ngurah Rai International Airport in Bali or Soekarno-Hatta in Jakarta.
Turn off data roaming until your plan is ready. If you have not pre-activated a plan, disable mobile data in your settings immediately after landing. Airport Wi-Fi can be used to activate a plan via the My Singtel app before turning mobile data back on.
Telkomsel covers most tourist areas well. Bali, Lombok, the Gili Islands, and the main areas of Java are well-covered by Telkomsel. For more remote destinations like Komodo National Park or the Togean Islands, expect weaker signals.
Data auto-renews when exhausted. Singtel roaming data packages renew automatically when your allocation is used up. If you are approaching your data limit, disable roaming or purchase a larger bundle before running out to avoid unexpected billing.
WhatsApp and Maps work normally. All standard apps including Grab, Google Maps, WhatsApp, and hotel booking platforms work as expected. Download offline maps for specific areas before entering low-coverage zones.
For a short 3-5 day trip to Bali where you are primarily in tourist areas, Singtel's ReadyRoam Neighbours pack is a straightforward option. For longer itineraries, multi-island trips, or any trip that takes you beyond the main tourist corridors, a dedicated travel eSIM sized to your trip duration becomes more cost-competitive.
The clearest case for a TurkSIM eSIM is a two-week Indonesia itinerary: Jakarta to Yogyakarta, across to Bali, then east to Lombok and the Gili Islands. Stacking ReadyRoam renewals across this kind of trip, or relying on a fixed 6GB Worldwide pack that may not cover everything, introduces unpredictability. A fixed-price eSIM for the trip duration eliminates the monitoring and auto-renewal concern.
On a dual-SIM device, a TurkSIM eSIM runs alongside your Singtel SIM. Your Singapore number stays active for banking OTPs and incoming calls; the eSIM handles data throughout Indonesia. No SIM swap, no risk of missing authentication messages from Singapore banks.
Indonesia is the most visited international destination for Singaporean travellers. The Bali-Lombok corridor draws leisure travellers year-round; Jakarta is a regular business destination; and Yogyakarta, Komodo, and Flores draw the adventure and cultural tourism crowd. Each of these destinations has a different connectivity profile, and a single eSIM covering the full Indonesian network footprint handles all of them.
TurkSIM eSIM Indonesia connect to Telkomsel, Indosat Ooredoo Hutchison, and XL Axiata in Indonesia. Telkomsel's national reach is particularly important for trips that extend beyond Bali. For the Gili Islands, where networks are more limited, Telkomsel and XL Axiata provide the best chance of a usable signal.
The dual-SIM advantage matters specifically for Singaporeans because Singapore banking apps routinely send OTPs to your registered mobile number. Keeping the Singtel SIM active while using the TurkSIM eSIM for data means no disruption to banking, PayNow, or any service tied to your Singapore number.
Yes. Singtel's roaming partners in Indonesia include Telkomsel, which has the widest coverage across the archipelago, including Bali, Lombok, and the Gili Islands. Coverage in more remote areas of eastern Indonesia and rural Kalimantan is more limited on any network.
Open the My Singtel app, navigate to the roaming section, and enable international roaming for your account. You can pre-purchase a ReadyRoam or DataRoam bundle from the same app before departure. Check current plan availability and pricing in the app, as options change.
If you have auto-renewal enabled, your data package will renew automatically when exhausted. This means additional charges will apply. Monitor your usage in the My Singtel app and consider disabling auto-renewal if you want to control costs. Alternatively, you can purchase a larger bundle before running out.
Yes. Grab operates in Indonesia and works normally with a data connection. For airport pickups at Ngurah Rai (Bali) or Soekarno-Hatta (Jakarta), having your roaming active before arriving in the arrivals hall is useful.
For a two-week trip, a fixed-price travel eSIM often works out more cost-effective than multiple ReadyRoam renewals. The eSIM installs before departure, requires no monitoring for auto-renewal, and on a dual-SIM device leaves your Singtel number active throughout.
Singtel primarily connects to Telkomsel in Bali, which provides the best coverage on the island including in Seminyak, Ubud, Uluwatu, and the main south Bali tourism corridor. XL Axiata is also available as a secondary partner in some configurations.
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