au, or au by KDDI, is a brand marketed by KDDI in the main islands of Japan and by Okinawa Cellular in Okinawa for their mobile cellular services.
Wikipedia https://en.wikipedia.org/wiki/Au_(mobile_phone_company)
Official Website http://www.au.kddi.com/
Phone 03-5922-1267
Address (Unnamed Road), Tokyo, Japan
Coordinates 35°45'32.406" N 139°39'15.302" E