Free eSIM for Bali and Indonesia: 1 GB, No Registration Queue

Buying a local SIM in Indonesia now means a biometric-era registration process and, if you want it to work properly, a customs formality for your phone as well. co:sim's free new-user eSIM for Indonesia is 1 GB valid for 7 days, $0 at checkout, installed before you fly and live the moment you land at Bali's Ngurah Rai, Jakarta's Soekarno–Hatta, Surabaya or Yogyakarta.

This guide covers what changed about Indonesian SIM registration in 2026, why Bali's airport makes arriving connected unusually useful, what the networks actually deliver, and whether 1 GB lasts a week.

#What changed about buying an Indonesian SIM in 2026?

The registration process got heavier. Under Communications and Digital Ministerial Regulation No. 7 of 2026, prepaid SIM cards are distributed inactive and activated only after registration, with Indonesian citizens registering via their national identity number plus biometric facial data and foreign nationals presenting a passport or valid residency permit.

For a visitor that has a practical consequence: the online self-registration portals are built around the citizen identity number, so you register in person at a carrier store, an official airport counter or an authorised reseller. A SIM bought from an unbranded kiosk may simply never activate.

There is a second, separate requirement people miss. Indonesia asks you to register your handset's IMEI with Customs if you use a local SIM in it. Stick with a roaming profile instead and the IMEI step does not apply, which is the quiet reason an eSIM is more than a convenience here.

None of this makes a local SIM a bad idea for a long stay. Telkomsel's tourist card is Rp 150,000 for 25 GB plus some voice, validated against your passport and IMEI, with a limit of three SIMs per passport. That is a lot of data. It is also a queue, a document check and a customs step you do not need in your first hour.

#Why does arriving connected matter so much at Bali airport?

Because of how ride-hailing works at Ngurah Rai. Grab and Gojek are far cheaper than the fixed-price taxi counter, but airport rules push app-booked cars to a designated pickup area rather than the kerb outside arrivals. You book, then you walk. Doing that requires a working phone before you leave the terminal.

The taxi counter is the fallback and it is honest about its prices: roughly Rp 150,000 to Kuta, Rp 200,000 to Seminyak, and Rp 350,000–450,000 up to Ubud, which takes about 90 minutes in afternoon traffic. Knowing that before you are standing in front of it is worth something.

Yogyakarta deserves a similar warning for a different reason. The airport moved in 2020 and is now 40 km from the city rather than the old field's 10 km, so guides written before then are wrong about the transfer. The rail link covers it in roughly 40 minutes for Rp 20,000, and missing the last one turns into a long, expensive car.

#What do Indonesian networks actually deliver?

co:sim's Indonesia plans roam onto Telkomsel, Indosat, XL and Smartfren. The plan page names the underlying network before you buy, and in Indonesia that is not a detail — it is most of the decision.

Opensignal's December 2025 Indonesia report measured average download speeds of 35.0 Mbps on Telkomsel, 28.5 Mbps on XL and 23.8 Mbps on IM3. The 5G picture is starker: Telkomsel users spent 19.0% of their time on 5G, IM3 9.4% and XL just 3.1%.

Read that as an expectation-setter. Indonesia is a 4G country with 5G in patches, and any eSIM sold to you as "5G in Bali" is describing a capability rather than a typical experience. For maps, messaging and ride-hailing this changes nothing; LTE at 25–35 Mbps is more than enough. It matters only if you were planning to work off the connection.

Coverage follows the population. Strong across Java and southern Bali, decent in Lombok and the main Sumatra and Sulawesi cities, and genuinely patchy exactly where people go to be remote: the interior of Nusa Penida, most of Komodo National Park, much of Raja Ampat.

FREEClaim the free eSIM for Indonesia

#Is 1 GB enough for a week in Bali?

For navigation, messaging and booking rides, yes. For anything else, plan around it. A day of maps, WhatsApp, a few Gojek bookings and some restaurant lookups runs roughly 80–150 MB, so a careful week fits inside 1 GB.

Bali is where that budget gets tested, because a beach holiday generates photographs. A day of automatic iCloud or Google Photos backup will finish 1 GB on its own, and one 10-minute 1080p video is around 300 MB. Turn off photo auto-backup on cellular before you land; it is the single setting that decides whether the trial lasts the week.

These plans are reloadable, so if you do run out you top up from the co:sim account dashboard and the same eSIM profile keeps working, with no reinstall and no second QR code. That matters more here than in a compact country: once you are in Ubud, going back to an airport counter is not a plan.

#How do you claim and install it before you fly?

Install at home on Wi-Fi, activate on arrival. Installing an eSIM needs a connection, so doing it at Ngurah Rai is the problem you are trying to avoid.

1. Open the free eSIM page for Indonesia and claim it. One per new customer, $0 at checkout.
2. co:sim emails the QR code within seconds of checkout.
3. Scan it on home Wi-Fi. iPhone: Settings → Cellular → Add eSIM. Most Android: Settings → Network & internet → SIMs → Add eSIM.
4. Install Gojek or Grab in the same sitting, and download offline maps for wherever you are heading.
5. On landing, switch the co:sim line on and enable data roaming for that line only.

Each co:sim plan page states its install deadline, so you can see how far ahead of a trip it is safe to buy.

Hopping on to Singapore, Kuala Lumpur or Bangkok afterwards? Those are separate cards with no roaming between them, so a Southeast Asia regional plan is the sensible option for a multi-country route.

#FAQ

#Is the free eSIM for Indonesia the same offer as co:sim's free eSIM for Europe?

No. co:sim's new-user free eSIM is one promotion funded across several genuinely separate products, and they are not interchangeable cards. One is a regional plan covering 33 European countries on a single profile. The Indonesia version is its own single-territory plan: it works throughout Indonesia and stops at the border, including on the Batam and Bintan ferries from Singapore and on the overland crossings from Borneo into Malaysia. Turkey, Moldova, Singapore, Malaysia, Japan, Thailand and South Korea each have their own separate card on the same basis. The promotion is claimable once per new customer, so this is a decision about which country to take it for rather than a set to collect. Claim it for wherever you land first.

#Does it cover the whole country or only Bali?

The whole country, though not evenly, and the unevenness is predictable. Coverage tracks population density, so it is strong throughout Java and across southern Bali, workable in Lombok and in the larger cities of Sumatra and Sulawesi, and thin in exactly the places people travel to for emptiness. Expect gaps in the interior of Nusa Penida, across most of Komodo National Park, and through much of Raja Ampat. On the fast-network question, Opensignal measured Telkomsel users on 5G 19.0% of the time against XL's 3.1%, so treat Indonesia as a competent 4G country with 5G in patches. Download offline maps before any day that takes you off the main roads, whichever provider you use, because the limitation is geography rather than the plan.

#Do I still need to register my phone's IMEI?

Not if you use a roaming eSIM. Indonesia's IMEI registration requirement applies to handsets using an Indonesian SIM card: buy a local prepaid SIM and you are expected to register the device with Customs, which is a separate errand from registering the SIM itself. A travel eSIM keeps you on a foreign profile roaming onto Indonesian networks, so neither the SIM registration nor the IMEI step applies to you. This is the practical reason an eSIM is worth more in Indonesia than in most destinations: it is not simply faster than the counter, it removes two administrative steps rather than one. If you later decide you want a local SIM as well for the extra data, nothing stops you buying one on top of the eSIM you are already using.

#What happens when the 1 GB or the 7 days run out?

Whichever limit you hit first ends the plan's data. The seven days start at first connection rather than at purchase, so installing the profile a week or two before departure does not quietly consume the validity — the clock starts when the eSIM first attaches to an Indonesian network. Once the allowance is gone, these plans are reloadable: you top up from the co:sim dashboard and the same profile keeps working, with no reinstall and no new QR code. You can also move to a paid Indonesia plan with a larger allowance, or buy a Telkomsel tourist card if you happen to be near an official outlet. Nothing on your phone breaks when the free plan ends; the line simply stops carrying data.

#Will it work in Ubud and out at the rice terraces?

Yes for the town and the main road, with honest caveats beyond them. Ubud itself and the Tegallalang route have stable 4G, and Telkomsel covers most of the touristed south of the island. Where it drops is the terrain: the river gorges below the terraces, and the back roads out towards Sidemen and Munduk, where the signal follows the road rather than the valley floor. If you are riding a scooter into the hills, download offline maps first — that advice applies to any provider, including a local SIM, because the limitation is topography rather than the plan. A co:sim eSIM roams onto the same Indonesian networks local phones use, so you get what they get in the same spot.

Ready to skip the counter and the customs desk? Claim the free eSIM, install it tonight, and switch it on when you land.

Browse co:sim's Indonesia eSIM plans