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Calling with a Prepaid phone: Prepaid Services

Calling with a Prepaid phone

image: Prepaid phone + Prepaid cards

Prepaid cards are also usable with prepaid phones.

Purchasing a prepaid card

Prepaid cards are purchasable nationwide at au Shops, PiPit, and some convenience stores.

  • *Some shops may not carry prepaid cards.

Charged fees and available usage periods

Calling cost Weekday daytime
(8:00 AM to 7:00 PM)
Weekend and holiday daytime
(8:00 AM to 11:00 PM)
6 sec. / ¥10
(tax included)
Weekday nighttime
(7:00 PM to 11:00 PM)
Late night / Early morning
(11:00 PM to 8:00 AM)
5.5 sec. / ¥10
(tax included)
Cost to send SMS (C-mail) ¥5.14 / message (tax included)
Available usage period [1] ¥3,000 (non taxed)
for 60 days from day of registration
¥5,000 (non taxed) for 90 days
¥10,000 (non taxed) for 365 days
Service area Nationwide Japan
Prepaid card type Available usage amount Available usage
period [1]
Re-registration period
¥3,000 (non taxed) ¥3,300 (tax included) 60 days 90 days
¥5,000 (non taxed) ¥5,500 (tax included) 90 days 90 days
¥10,000 (non taxed) ¥10,000 (tax included) 365 days 90 days
Three Little Pigs card [2]
(Card set with three ¥1,000
(non taxed) cards)
¥1,000/card (tax included) 30 days/card 90 days/card
  • [1] Even if the card balance reaches ¥0, you can still receive calls during the available usage period. The call time limit is calculated from the day of registration.
  • [2] Only available at stores.

Usable services

SMS (C-mail)

SMS (C-mail) is usable nationwide in Japan

Sending ¥5.14 / message (tax included)
Receiving Free

Calling overseas

You can make international calls using the KDDI 001 service without entering into a usage contract.

Making an international call

Calling charges (example)

Area Calling charges
USA 12 sec. / ¥20 (tax exempt)
South Korea 9 sec. / ¥20 (tax exempt)
China & Taiwan 8 sec. / ¥20 (tax exempt)
England, Germany, France 6 sec. / ¥20 (tax exempt)

Other services

Caller ID display and Caller ID request are available.

How to use

image: How to use

The link below provides instructions on how to register, how to add cards, how to check your balance, and how to select voice guidance in a foreign language.

How to use


  • If your registered balance reaches ¥0 during transmission or calling, you will be unable to use the service even if in the middle of a call.
  • You cannot use Email and EZweb through the prepaid service.
  • For calls using prepaid services are paid call detail will not be published.
  • Paid for calls using prepaid services, various discounts available.
  • Your prepaid service will terminate if you do not register a new card during the re-registration period.
  • Pripaid cards can be registered up to ¥10 at a time, can call 365 days period, the balance of ¥60,000 registration (tax included) can not exceed the registration.
  • You pay your monthly bills are not available.