Prepaid cards can also be used for prepaid phones.

Prepaid phone + Prepaid cards Prepaid phone + Prepaid cards

Calling charges and validated date

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
・Prepaid card type ¥3,000 (non taxed) ¥3,300 (tax included) 60 days 90 days
・Available usage amount ¥5,000 (non taxed) ¥5,500 (tax included) 90 days 90 days
・Available usage period *1 ¥10,000 (non taxed) ¥10,000 (tax included) 365 days 90 days
・Re-registration period 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.

Available Services

SMS (C-mail)

SMS (C-mail) is usable nationwide in Japan.


¥5.14 / message (tax included)



Calling overseas

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

Calling charges (example)


Calling charges


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

  • 1

    Purchase a prepaid card.

  • 2

    Dial 1400

  • 3

    Following the voice guidance, register number on the back side of the card.

  • 4

    Just dial a phone number to get started!

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.


  • 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  • For calls using prepaid services are paid call detail will not be published.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.


Please review the FAQs before contacting Customer Center.

  • All of the indicated amounts include tax unless otherwise specified.
  • 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)