Contact information about my number system

For inquiries about the My Number system, please use the national "My Number Comprehensive Toll Free Number".

Weekdays: From 9:30 a.m. to eight p.m.
Saturday, Sunday and public holidays: From 9:30 am to 5:30 pm (excluding New Year holidays)
(Temporary suspension of use of the card due to loss or theft of My Number Card will be available 24 hours a day, 365 days a year.)

Phone number: 0120-95-0178 (free of charge)

Follow the voice guidance and select the menu of the information you want to hear.

• No. 1: Inquiries about My Number Card, Digital Certificate, Personal Number Notice, Notification Card
• No. 2: Lost or Stealing My Number Card
• No.3: Inquiries regarding My Number System and Corporate Numbers
• No. 4: Inquiries about Minor Portal
• No.5: Inquiry about the second minor points
• No. 6: Inquiries about the public money receiving account registration system

If you cannot connect to the above Phone number by some IP phones, please call the following Phone number. (charged)
　　　　　Phone number: 050-3818-1250

Thing about my number system, minor portal
Phone number: 0120-0178-26

Temporary suspension of use of personal number notification, notification card, my number card, and My Number Card due to loss or theft
Phone number: 0120-0178-27

We accept fax inquiries from people with hearing impairments.
When making inquiries, please use a special fax form (external site).

Fax number: 0120-601-785

Please contact your ward office Family Registry Division.
Contact information for each ward office Family Registry Division

Civic Affairs Bureau Contact Service Section accepts fax inquiries from hearing impaired persons.

Fax number: 045-664-5295