Welcome to Japan
We hope your trip be wonderful
The Best eSIMs for Visiting Japan
*It may take around 5 to 10 minutes to activate.
Regarding inquiries during the New Year holidays
The following email address will be closed from December 28, 2024 to January 5, 2025.
info@onlysimpp.com
Inquiries during the above period will be handled from January 6th onwards.
For inquiries regarding activation methods,
the Customer Support Center can assist you.
Phone number: 050-5835-2190 (available 24 hours a day, 365 days a year)
[Please check before purchasing an eSIM]
■Please make sure that your device is eSIM compatible and SIM-free (or SIM-unlocked).
■Data communication only
■SMS (text messages) cannot be used.
■Due to the nature of the product, no returns, refunds or reissues will be accepted.
This includes situations caused by the device not supporting eSIM or not being able to be configured.
■Your activation URL will be sent from the following email address:
"developer@pake-sys.com"
If you do not receive an email after a while, it may be that the email address you entered is incorrect or has been sorted into your spam folder.
Also, if you have specified a domain, please make sure you set it up in advance so that you can receive emails from "@pake-sys.comm".
[About activation codes]
・The activation code is written in step ③. Follow the quick guide to set it up.
・You will not receive a separate email with the activation code.
【Setup flow】
https://www.onlysimpp.com/flow/
- [Scheduled Maintenance Notice]
- ・Due to maintenance work,
the service will not be available between 10pm on Tuesdays and 9am on Wednesdays. - There is no effect on SIMs already in use.
- [Technical Support Center in Japan]
- TEL：050-5835-2190
If the above number is not able to connect to the technical support center, please call
03-6636-8383
Available 24 hours a day, 365 days a year
