America Flat-rate

Unlimited voice calls and data for iPhone users, even in the U.S. including Hawaii America Flat-rate Free campaign available now!

Prices are not applicable to taxes.


Unlimited voice calls and data with your iPhone/iPad, even in the U.S.

"America Flat-rate" is an optional service that allows customers using a supported SoftBank device to have unlimited usage for voice calls, data, and emails in the continental U.S., Hawaii, and other areas using Sprint's network. As part of a special offer, the service is currently provided free of charge.

  • Connections to networks other than Sprint will incur voice and data rates according to the Global Roaming Service.


Free campaign available now!

  With special offer Always
Fee Free ¥980/month
Apply Not required Required
  • The service fee(billed monthly)will apply when there is usage on Sprint's network.
  • No special application required and no fees for customers with a subscription to Smartphone Flat-Rate "Data Flat-rate Pack-Regular(5GB)" or greater after the special offer ends. (Except in a subscription to Data Share Plus, Data Sharing Option for Family and other services.)

Eligible customers and Conditions

  • Supported devices: iPhone 6 or later / iPad Air 2 or later※1
  • Must have a subscription to global roaming service.
  • This service is available regardless of which plans you have subscribed to in Japan.
  • ※1
    11-inch iPad Pro and 12.9-inch iPad Pro (3rd generation) are available in LTE network only.

Service area

Sprint network covering US, Hawaii, Puerto Rico, US Virgin Islands.

  • Alaska, Montana, Guam, Saipan and other regions are excluded.
  • Due to a change in Sprint's network, customers will no longer be able to have network connections in Mississippi effective from the end of July.

See service areas for America Flat-rate
*Japanese only

Usage image

Data (Internet usage)

Web Translation MAP SNS

Sending and receiving voice calls

Outgoing and incoming voice calls are free! Japan U.S. Please make sure you are connected to “Sprint”  when using this service

Voice Call fees

From To Incoming call
Japan U.S※2 Other countries
U.S※2 Free ¥210/min Free
  • ※2
    Guam, Saipan and other regions are excluded.



  • Certain apps may perform data transfers automatically which may cause data charges to be incurred. If you do not plan on using data, turn off “Cellular Data” on your phone.
  • Connection to Sprint's network is possible only when “Carrier” is set to “Auto”. Depending on network conditions, connection to Sprint‘s network may not be possible.
  • Connections to networks other than Sprint will incur voice and data rates according to the Global Roaming Service.
  • Call forwarding and other services are not available.
  • For SMS messages that are only in English, certain symbols may not display.