Two-step data flat for Overseas(4G LTE)

What is Two-step data flat for Overseas?

This service is recommended for users who want to use the Internet overseas in the same way as they do in Japan and who are worried about expensive charges. (No application required!)

What is Two-step data flat for Overseas?

Two-step data flat for Overseas is a flat-rate overseas packet communication service. Up to approximately 24.4 MB of packet communication for a maximum charge of ¥1,980/day (tax exempt), and ¥2,980/day (exempt) no matter how much you use!
Of the approximately 200 countries in the world, Two-step data flat for Overseas can be applied to any service provider in 162 countries. With 4G LTE models, connections to carriers eligible for Two-step data flat for Overseas automatically established meaning you do not have to worry about overuse.

Packet communication charge / Upper limit (tax exempt) Application
Up to approximately 24.4MB (¥40,000) is a maximum of ¥1,980/day [*]
No matter how much you use, the maximum is ¥2,980/day [*]
Not required
  • * The upper limit is the amount for transmission during one day of Japan time (0:00 to 23:59), not the local time at the destination. This is not a monthly flat rate.


  • Note that packet communications used through a network not covered by Two-step data flat for Overseas are charged on a usage basis, possibly resulting in higher charges.
  • Note that in areas near national or regional borders, there is a risk of connecting to a carrier from the neighboring area that is not covered under Two-step data flat for Overseas.
  • Not eligible for Two-step data flat for Overseas if connected to a ship/airplane carrier.
    List of ship/airplane carriers

To check countries and regions where this service is available, see the map at the link below.

Service area map

Supported models

4G LTE models

  • iPhone (excluding iPhone 4S)
  • iPad
  • 4G LTE smartphone
  • 4G LTE Feature phone
  • Tablet
  • Data communication devices (devices supporting international roaming)

How to set

Click here to check how to set (in Japanese only)

Applicable condition

Customers subscribed to LTE NET and LTE NET for DATA

Coverage areas

Click here to check what models can be used at your destination, calling charges, and data communication charges.

  • 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)