In Bali, a travel eSIM bought before you leave works by roaming on an Indonesian network and sidesteps the question of registering your phone’s IMEI. Check what your home carrier charges for roaming in Indonesia before you travel. An eSIM or SIM from an Indonesian operator (Telkomsel, Indosat, XL) is still possible: it is bought with a passport, and activating it requires a registered IMEI.
This guide explains the IMEI rule for visitors, compares a travel eSIM, your carrier’s option and an Indonesian line, and gives tips for Bali and the neighboring islands. The basics common to all destinations are in our travel eSIM guide.
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eSIM in Bali: key points
- Check what your home plan includes for Indonesia before you leave.
- Foreign travel eSIM = roaming: no IMEI procedure on the spot, according to Indonesian customs.
- Indonesian line: passport and registered IMEI; Telkomsel says to register the IMEI with customs if it is not registered.
- Three major networks: Telkomsel, Indosat Ooredoo Hutchison and XL.
- eSIM-compatible, unlocked phone; install on Wi-Fi before you leave.
Will your home plan work in Bali?
Depending on your plan, Indonesia may be included with a data allowance, covered by an add-on, or billed outside your plan; carriers set their own roaming rates. Check your customer account or ask your carrier.
How a travel eSIM works
An eSIM is a SIM chip built into the phone. Instead of inserting a card, you download a carrier profile. A travel eSIM is a prepaid plan, usually data only, valid for a set number of days and running on an Indonesian carrier’s network. Plans differ in data allowance, validity, the network or networks used, hotspot (tethering) sharing, top-up options and whether they include a local number.
The profile is installed with a QR code or from the provider’s app. This step needs an internet connection: do it at home on Wi-Fi, then activate the line when you arrive in Bali.
Is your phone compatible?
- eSIM support: in your settings, look for « Add eSIM » or « Add cellular plan ». Dialing *#06# shows the IMEI and, on many models, an EID number when eSIM is supported.
- Unlocking: the phone must not be locked to your carrier, otherwise it will refuse another network’s profile.
- Dual line: most recent phones handle two lines (a physical SIM and an eSIM, or two eSIMs). That is what lets you keep your home number for text messages.
IMEI registration: what concerns visitors
Indonesia checks the phones used on its networks by their IMEI number. The pages of the Indonesian customs offices (Bea Cukai) distinguish several cases for foreigners passing through:
- Foreign line on roaming (your home SIM or a foreign travel eSIM): no IMEI registration to do.
- Indonesian line for a short stay: temporary registration is done at the carrier’s point of sale, for a limited period (90 days according to these pages).
- Longer stay: registration with customs, with a deadline to meet after arrival and a limit of two devices per passenger.
Telkomsel’s official FAQ confirms this for its eSIM: if activation fails, check that the « IMEI has been registered. If not, register it at customs ». These rules have changed several times and some of the customs pages we consulted are old: check the procedure in force with the carrier at the time of purchase.
What this means for you: with a foreign travel eSIM, you have nothing to do at Denpasar airport. With an Indonesian line, bring your passport and allow time for registration.
Indonesian operators
The major mobile networks are Telkomsel, Indosat Ooredoo Hutchison and XL. Telkomsel sells « Tourist » offers (eSIM and SIM) for foreigners, sold on presentation of a passport according to its official pages. The sector comes under the Indonesian Ministry of Communication and Digital Affairs (Komdigi, formerly Kominfo).
What this means for you: coverage is good in southern Bali and around Ubud, more patchy in mountainous areas and on some neighboring islands. An eSIM that clearly states its network helps you choose.
Travel eSIM, home carrier option or Indonesian line?
| Solution | Best for | What to check |
|---|---|---|
| Travel eSIM (data) | Tourist trips | Network used, data allowance, duration, hotspot sharing |
| Your home carrier’s option | Travelers who want to keep a single plan | Indonesia zone, included data, out-of-bundle rate |
| Indonesian line (SIM or « Tourist » eSIM) | Long stays, need for a local number | Passport, IMEI, validity period |
An Indonesian number can be useful for local transport or delivery apps that require a national number; check the app you plan to use.
Installing your eSIM step by step
- Before you leave, check that your phone supports eSIM and is unlocked.
- Buy the plan and note whether it starts at installation or at the first connection on arrival.
- Install the profile on Wi-Fi and label the line « Bali » so you can find it easily.
- On arrival: select this line for cellular data, turn on data roaming on this line only if the provider asks you to, and turn off data on your home line.
- Leave your home line on so you can receive text messages from your bank, after checking with your carrier that receiving texts abroad is not charged.
Tips specific to Bali
- Nyepi: the UK FCDO (GOV.UK, updated 18 September 2026, read 26 October 2026) explains that on Balinese New Year (Nyepi) local custom requires everyone in Bali to observe a day of silence by staying indoors, turning off lights and making no noise, and that Ngurah Rai International Airport is closed for the entire day (it gave 19 March 2026 for that year). Expect a day without outdoor activity, and check the date before you book.
- Neighboring islands: for Nusa Penida or boat excursions, download maps and tickets for offline use; the UK FCDO notes that sea conditions can change rapidly, safety standards vary between providers and vessels can be crowded, and the U.S. State Department notes that boat and ferry incidents are frequent and that vessels often lack adequate safety vests.
- Rainy season: the UK FCDO says the rainy season usually runs from October to March; carry a power bank, and see when to go to Bali.
- Payment: both the UK FCDO and the U.S. State Department (travel.state.gov, last updated July 09, 2026) report that credit card fraud is common in Indonesia; do not lose sight of your card, use ATMs in secure locations such as major bank branches and check machines for tampering.
- Two-factor authentication: keep your home line active for text messages from your bank.
Common mistakes to avoid
- Buying an eSIM with a carrier-locked phone.
- Installing the profile on arrival without Wi-Fi: do it before you leave.
- Leaving data switched on for your home line: it is the one that would bill roaming.
- Deleting the profile during your trip: many cannot be reinstalled.
- Buying an Indonesian SIM without checking that the phone’s IMEI can be registered.
- Choosing an « Asia » eSIM without checking that it really covers Indonesia.
Buying an eSIM for Bali
To compare plans, look at the local network or networks used, the data allowance, the validity period, hotspot sharing, top-ups, whether a local number is included and when the validity period starts. For Bali, look at the network used if you are staying outside the south of the island, and at the data allowance if you work remotely. A « data only » plan is enough for most travelers: messaging apps replace calls.
You can buy from a travel eSIM provider, from a local carrier if it offers a plan suited to visitors, or through a comparison site. In every case, read the refund terms: an installed profile is generally no longer refundable.
Frequently asked questions
Do eSIMs work in Bali?
Yes. A travel eSIM connects by roaming to an Indonesian network; the phone must be eSIM-compatible and unlocked.
Do you need to register your phone’s IMEI?
Not with a foreign line on roaming, according to Indonesian customs. With an Indonesian line, the IMEI must be registered (at the point of sale for a short stay).
Does Telkomsel offer an eSIM to tourists?
Yes, Telkomsel sells « Tourist » offers on presentation of a passport, according to its official pages.
Will my home plan work in Indonesia?
It depends on your carrier and plan: check the rate for Indonesia before you leave.
Can you use the internet during Nyepi?
Nyepi is strictly observed in Bali; ask your accommodation about the services available that day.
Our sources
- Telkomsel, official FAQ « What should I do if eSIM activation fails? » and « Tourist » offer pages, consulted on 27 October 2026.
- Indonesian Directorate General of Customs (Bea Cukai), « Registrasi IMEI » pages of regional offices (Ngurah Rai, Juanda, Bogor), summarized from a consultation on 27 October 2026.
- UK FCDO, foreign travel advice for Indonesia (GOV.UK, updated 18 September 2026), read on 26 October 2026.
- U.S. Department of State, Indonesia country information (travel.state.gov, last updated July 09, 2026), read on 26 October 2026.
- Our methodology
Updated October 2026. Providers’ offers and terms may change: check them before you buy.