Area

ずっと、もっと、つなぐぞ。au
  1. The coverage percentage is calculated based on areas within the approximately 500m grid areas used in the national census with a communication availability of 50% or higher.
    Information listed is as of the end of September 2019. This information is subject to change.
    Applies to 4G LTE (800MHz)-compatible devices.
    Does not apply to iPhone 5 or iPads (2012 model).

What about au's network and service areas would you like to learn more about?

Learn more about the au service areas

The following 4 types of areas can be looked up on the service area map

  • 5G area

    au 5G service is available starting March 26th, 2020 in a limited number of service areas and is set to include the other areas as it becomes possible. (5G phones can be used in 4G LTE areas in addition to in 5G areas. As there is initially a limited number of 5G service areas, 4G LTE areas will be where 5G phones are mainly used. Please carefully review the au 5G service areas before signing a contract for a 5G phone.)
  • 4G LTE area
  • 3G area
  • WiMAX 2+ area

Look up by ZIP code, address, or keywords (in Japanese only)
(You will be taken to a different site for the search)

Due to a server error, we are currently unable to perform a character search. We apologize for the inconvenience.

Keyword examples: Tokyo Station, Kusatsu Onsen, Tokyo Tower, etc.

Click here to find out more about other service areas (in Japanese only)

  • We will gradually terminate our roaming service in some Rakuten Mobile areas, and in principle, we plan to terminate our roaming service in Tokyo by the end of fiscal year 2020.

I am having trouble getting signal

電波サポート24

We respond within 24 hours!*

There are cases where problems with signal in the home or workplace are improved with the installation of a specialized device (free).

Support service is also available at stores or restaurants that you frequent as well as other locations away from the home or workplace.

  • Excludes the year end/New Year holidays. Also excludes Saturdays, Sundays, and holidays in the case of the workplace.
  • Email responses are excluded as responses made within 24 hours.
Click here for details on conditions and the application (in Japanese only)

Learn more about our efforts for au network

Increasing network strength for an event

In order to allow our users to use our mobile phone services more easily at music festival, fireworks festival, and other event locations where many people gather, au reinforces the peripheral base stations and strengthens the signal using car base stations, etc.

over 99%

We have achieved coverage of over 99%* over a large area

au users enjoy a service area with over 99%* coverage with 4G LTE. Get reception whenever you need it in all kinds of locations, including on mountain trails, at World Heritage sites, campsites, and more.

  • The coverage percentage is calculated based on areas within the approximately 500m grid areas used in the national census with a communication availability of 50% or higher.
  • Information listed is as of the end of September 2019. This information is subject to change.
  • Applies to 4G LTE (800MHz)-compatible devices.
  • Does not apply to iPhone 5 or iPads (2012 model).

See whether 4G LTE can be used in the following locations (in Japanese only)

We work to keep you connected 24 hours a day, 365 days a year

Our Mobile Operations Center monitors communication conditions nonstop all over the country, 24 hours a day and 365 days a year.

Even in the unlikely event of a malfunction, we are able to quickly and reliably perform system restoration work to provide reliable and stable service to our customers.

au provides a network with "stable communication quality" even in buildings, such as shops and office buildings.

There are also many other things that we work with here at au

See the other things we work with at au (in Japanese only)

Announcement regarding the discontinuation of service for devices that do not support "au VoLTE"

As of the end of March 2022, devices that do not support the au high sound quality voice call service "au VoLTE" can no longer be used. Customers using devices that do not support "au VoLTE" may continue to use their devices until the discontinuation. However, after the service discontinuation of these devices, a switch to devices that support "au VoLTE" will need to be made to continue using au services.
  • Each of the communication speeds listed is the best-effort service. Note that the maximum communication speed is not the actual communication speed, but the maximum value based on the technical standards. The actual speed may fall substantially short of the maximum for various reasons including the customer's communication environment and traffic conditions even within service areas, or there may be cases where communication is not available at all. Communication speeds also depend on the capabilities of devices. The communication speed is the maximum communication speed within technological standards at the time this is printed and may change from this point on, with reduction in speed included as a possibility.
  • The service name "4G LTE" conforms to the statement of the International Telecommunication Union that has approved LTE to be called "4G".

  • By phoneOpen 9:00 – 20:00

    • English

      0120-959-472(Toll Free)

    • Portuguese

      0120-959-473(Toll Free)

    • Chinese

      0120-959-476(Toll Free)

    • Korean

      0120-959-478(Toll Free)

    • Tagalog

      0120-933-952(Toll Free)

    • Vietnamese

      0120-933-961(Toll Free)

    • Japanese
      about au mobile services

      157(Toll Free)from au phones

      0077-7-111(Toll Free)

      about Internet services
      Contract / Fee / Billing

      0077-7084(Toll Free)

      Connection setting / failure

      0077-777(Toll Free)

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