Mobile Phone


In order to use the IRIDIUM services, a contract for use of these services must be made in addition to the purchase of a terminal.

Service contract charges (per contract)


  • Service contract charges are billed together with the initial communication charges.

Monthly basic rate (per contract) (tax free)

  ¥6,000 plan ¥5,000 plan
Basic monthly rate ¥6,000 ¥5,000
Includes free communication worth
Includes free communication worth
  • Monthly basic rate is tax free.
  • From January 2016, the monthly charge for the month of cancellation will not be prorated and will be charged in full.

Communication charges (tax free)

  ¥6,000 plan ¥5,000 plan
To landline or mobile phones ¥55/20 seconds ¥63/20 seconds
To IRIDIUM satellite mobile phones ¥35/20 seconds ¥40/20 seconds
To other satellite mobile phones ¥500/20 seconds ¥572/20 seconds
Incoming calls Free
Outgoing SMS message (per 160 characters) ¥50/1 mail ¥58/1 mail
Incoming SMS message Free
  • Calls to satellite mobile phones subscribing to NTT DoCoMo's WIDESTAR satellite telephone service are charged at the same rate as calls to landline phones.
  • SMS messages written in Japanese cannot be sent or received. Only single-byte alphabet and numbers, Greek characters, and some symbols are usable.
  • Communication charges are exempt from taxation.

Handset rental


The IRIDIUM satellite mobile phone rental service is now suspended temporarily.

The following are the charges for rental contracts.

Term of contract 1 week 1 month 3 months 6 months
Rental charges ¥24,000 ¥61,000 ¥135,000 ¥217,000
  • Communications charges are not included in the rental price. These will be charged separately.
  • All of the indicated amounts exclude tax unless otherwise specified.