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  • 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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Can I change my plan without upgrading the device?

Yes. If you are using a 4G LTE device, you can change your plan within 4G LTE plans without upgrading the device. If you are using 5G device, you can do the same within 5G plans.

Important notes

  • You may not be able to change your plan on My au depending on the status of your contract. In this case, please complete the procedure at a nearby shop or contact the customer center.

  • Your plan will be effective from the following month after the date of your application.

For your reference

  • Click here for the Lineup of Price Plans
  • All of the indicated amounts exclude tax unless otherwise specified.