For inquiries regarding water supply, please contact the Water Works Bureau Customer Service Center.
Water Works Bureau Customer Service Center
Telephone: 045-847-6262 Fax: 045-848-4281
※Please be careful not to make a mistake.
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- I want to know the customer number of the place where the water is used.
Here's the text.
Q
I want to know the customer number of the place where the water is used.
Last Updated January 27, 2025
A
The customer number is a 9-digit number described in the notification of the amount of water used for water and sewerage. Example: 12-34-56789
For inquiries about the number, please contact the Water Works Bureau Customer Service Center.
※Please note that we will ask you some questions when making inquiries. In addition, if the person who calls is not the person himself / herself, disclosure may not be possible depending on the relationship.
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Inquiries to this page
Water Works Bureau Water Supply Service Department Service Promotion Section (Telephone and fax numbers below are from Customer Service Center)
Telephone: 045-847-6262
Telephone: 045-847-6262
Fax: 045-848-4281
Page ID: 771-039-919
