Area

Look up service area

Service area map

You can look up service areas nationwide.

Learn more about 5G

5G areas, 5G technology

You can look up 5G area information and technical explanations. (in Japanese only)

Routes (in Japanese only)

Commercial areas (in Japanese only)

I am having trouble getting signal

Indoor signal improvement service

Please contact "Signal Support 24" for any problems related to signals at your home or workplace. (in Japanese only)

Learn more about our efforts for au network

Event measures

KDDI is taking measures to strengthen signals so that customers can use mobile phone services comfortably at festivals, fireworks displays, and other events. (in Japanese only)

Measurements of actual network speed

Notice

Announcement regarding service interruption due to failure or long-term construction (in Japanese only)
Announcement regarding temporary service interruption due to maintenance (in Japanese only)

Disaster response

Facilities where au mobile phone service may be unavailable in the event of a power outage (in Japanese only)
Prefectural and municipal governments implementing longer base station power supply hours (in Japanese only) (304KB)

All of the indicated amounts include tax unless otherwise specified.