Do I need to register my phone's IMEI with Indonesian customs to use my eSIMAdventures plan?

No, and this is a significant advantage for adventure seekers! The Indonesian government's IMEI registration requirement primarily targets local SIM cards to prevent long-term use by tourists without proper import duties. Since eSIMAdventures plans operate as roaming services, they are exempt from this regulation. You can activate your eSIM and start exploring Indonesia immediately upon arrival, without any customs hassle or fear of your device being blocked after an extended stay. Focus on your trek up Mount Bromo, not paperwork!