Our inquiry page is currently under maintenance

We are sorry. Our inquiry page is currently under maintenance.
Please try again after the maintenance is complete. We apologize for any inconvenience.

〇Maintenance schedule（expectation）
Wednesday, March 11, 2026, 0:00 a.m. to 5:00 a.m. (Service will resume as soon as maintenance is completed.)

Note that all other pages except for this one (Inquiries) are available as usual.
Please also use the following while maintenance is in progress.

• FAQ Page
• Chatbot

For temporary suspension of use due to loss or theft of a smartphone with Individual Number Card and electronic certificate installed, contact the following toll-free number of the Individual Number General Call Center.

• 0120-0178-27
• 0570-064-738 *If the above number is not available (not toll-free)