Calling overseas (au International Calling Service)

Service introduction

With au, you can quickly call from Japan to overseas without the need for extra procedures.
"Calling overseas" is a service that enables any of our customers to easily make international calls from their current au phone without the need for extra procedures.


  • Can be quickly used through simple operations.
  • Calling charges are calculated into monthly mobile phone charges.
  • Ponta Point also applies to calling charges of Calling overseas.
  • The free calling included in the au rate plan also applies.
  • Unlimited calls and calling discounts are not eligible for international calls.

How to use

Dialing methods
010 → country code → recipient's telephone number

  • Look up the country code from the "country code list."
  • If the area code starts with "0," please dial it without including the "0" (there are exceptions to this, such as fixed-line in Italy).
  • This service can also be used by dialing "005345" instead of "010".

Billing methods

au International Calling Service charges will be billed the following month by au in combination with au telephone charges.

Charged fees

The charges for each country of the world can be seen here.


  • KDDI sets a monthly use amount limitation (30,000 yen (tax exempt)) for au International Calling Service. As soon as KDDI confirms that the amount has been surpassed, KDDI will stop your use of it. Also, there are times when KDDI will stop your use of the service in question until KDDI is able to confirm payment of calling charges.
  • Calling charges will be billed after having been calculated into the monthly au telephone charged fees.
    • No charge discount services are applicable.
  • If you do not wish to use this service, it is possible to indicate in your application that "au International Calling Service" won't be necessary.
  • You can also use it even if your au telephone "Calling Code Display Service" is set to "186 Automatic Addition," "184 Automatic Addition."
  • Depending on the call recipient's country/region, there are times when connection is impossible due to the equipment available to local carriers.

Related services

If you are subscribed to an eligible Flat-rate Data service, you can make international voice calls to eligible countries and regions up to 50 calls each up to 15 minutes for a flat rate.

  • 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)