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Global eSIM expert for 200 countries.
4.7





김다*
BESTI've been using it really well because it's so filling and popping out well. I think Yusimsa's sim has never failed.





Your trip has already begun,
with USIMSA
Essential data for your travels! If you want to start your trip comfortably, we recommend a data eSIM. You can use it with just your smartphone settings, without needing to swap SIM cards. No more carrying bulky pocket Wi-Fi devices! Start your journey lighter, more convenient, and more affordable.







Operating Hours:
Messenger Customer Service
24 hours a day, all year round
Phone Customer Service
09:00 AM ~ 06:00 PM (Lunch break 12:00 PM ~ 01:00 PM)
Closed on weekends and public holidays
Contact Information:
Domestic: 1661-0158
International (Local issue support only): 070-5097-6417
KakaoTalk Plus Friend: @USIMSA