au customer support information, one of the reasons that au is the carrier with the highest customer satisfaction rate in Japan
Customer support information for mobile phone use
Please review the FAQs before contacting Customer Center.
Select your language.
Open: 9:00 – 20:00 *1
*1 Support for theft and loss of au mobile phones is available 24 hours a day.
【Inquire from Web】
【Inquire from Application】
Open:10:00 – 19:00 *1
* Not available if there is no icon showing.
* Please be informed that you may be forwarded to the corresponding department depending on your inquiry.
*1 Inquiries after business hours will be addressed on the following day.
Customer support information for internet use
Select your language.
Open: From 9:00 to 18:00