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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.
  • au WALLET Point Program 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.
  • *Free calling does not apply if forming a "001 Kokusai Mobile Talk" contract.

How to use

Dialing methods

010country coderecipient'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".

Country code list

Billing methods

001 International calling (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.

Charged fees


  • KDDI sets a monthly use amount limitation (30,000 yen (tax exempt)) for 001 International calling (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.
  • You can use international calling even after your service has been stopped using the following method.
    • KDDI 001 International Calling using a prepaid card
    • International calling using any sort of credit card or Super World card (no prior agreement necessary)
  • 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 "001 International calling (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.
  • *Customers who wish to do so can also apply for 001 Kokusai Mobile Talk.
    (A separate application is required to use 001 Kokusai Mobile Talk.)
    See below for details.

001 Kokusai Mobile Talk

  • *For customers who do not apply for 001 Kokusai Mobile Talk and make an international call by dialing "001", au International Phone Service charges apply.