Travelers planning island-hopping trips across Bali, Lombok, and Komodo are facing conflicting information about Indonesia's SIM registration requirements and eSIM performance, underscoring ongoing connectivity challenges for visitors moving between Indonesian islands.
A post on r/travel captured the confusion: "I have seen mixed info about local SIM registration vs esims. What has worked best for people recently?"
Indonesia's SIM Registration System
Indonesia implemented mandatory SIM card registration in 2022, requiring all users—including tourists—to register their devices and SIM cards with national identification databases. The system was designed to combat fraud but has created complications for international visitors.
The registration process theoretically requires:
• Valid passport information • Indonesian phone number • Device IMEI number registration • In some cases, biometric data
However, enforcement and actual requirements vary significantly depending on where you purchase the SIM and which provider you use.
The Local SIM Experience
Major Indonesian carriers like Telkomsel, XL Axiata, and Indosat offer tourist-friendly SIM packages at airports and authorized dealers. Recent traveler reports suggest:
At Ngurah Rai Airport (Bali): Most vendors complete registration on behalf of tourists during purchase, though this adds processing time and sometimes unofficial "service fees."
At local phone shops: Registration requirements are enforced inconsistently. Some shops register tourists easily; others refuse to sell to foreigners without Indonesian addresses.
Coverage between islands: Telkomsel offers the most reliable coverage across Bali, , and boat routes to . Budget carriers have significant dead zones in rural areas and between islands.
