SoftBank Segment

Definitions and Calculation Methods of Principal Operational Data

Mobile

All data on mobile communications service includes SoftBank, Y!mobile , and LINE MOBILE brands.
Each category includes the services as follows:

Main subscribers
Smartphones, feature phones, tablets, mobile data communications devices, Wireless Home Phone and others
[Note]
  • *
    Smartphones to which the Smartphone Family Discount are applied and mobile data communications devices to which the Data Card 2-Year Special Discount are applied are included under communication modules.
Communication modules
Communication modules, Mimamori Phone, prepaid mobile phones, and others
[Note]
  • *
    Communication modules that use PHS networks are included under PHS.
PHS
PHS

Principal Operational Data for Main Subscribers

ARPU
ARPU
Average Revenue Per User per month
Total ARPU
(data-related revenue + basic monthly charge and voice-related revenues + device warrantee services + content-related revenues + advertising revenue, etc.) / number of active subscribers (rounded to the nearest 10 yen)
[Notes]
  • *
    Data-related revenues = data-related revenue (packet communication and flat-rate charges, basic monthly Internet connection charges etc.
  • *
    Basic monthly charge and voice-related revenues = basic monthly usage charges, voice call charges, revenues from incoming calls, etc.
  • *
    Revenues from incoming calls = interconnection charges received from other operators for voice calls from their customers on their network to SoftBank, Y!mobile , and LINE MOBILE phones as a charge for the services provided in the SoftBank Corp. service area
Discount on ARPU
monthly discount + broadband service bundle discount (including Home Bundle Discount Hikari Set, Fiber-optic Discount)
Number of active subscribers
The total of the monthly numbers of active subscribers for the relevant period ((subscribers at the beginning of the month + subscribers at the end of the month) / 2)
Churn rate
Churn rate
Average monthly churn rate
Number of churn / number of active subscribers for the relevant period (rounded to the nearest 0.01%)
Number of churn excludes the number of subscribers who switch between SoftBank, Y!mobile, and LINE MOBILE using Mobile Number Portability (MNP)
[Note]
  • *
    Phone churn rate: churn rate for smartphones and feature phones within main subscribers, including voice SIM subscriptions.
Units sold
the total number of new subscriptions and device upgrades. New subscriptions where customers switch between SoftBank, Y!mobile, and LINE MOBILE using MNP are included in the number of device upgrades
[Note]
  • *
    ARPU, churn rate and number of units sold are calculated and presented excluding revenues or subscribers to the Wireless Home Phone.
Home Bundle Discount Hikari Set
A discount on the communication charges of mobile communications services to customers subscribing to bundled packages combining mobile communications services
[Note]
  • *
    Cumulative applications for the Home Bundle Discount Hikari Set: includes subscribers for Fiber-optic Discount applied to the Y!mobile brand mobile communications services. Includes that of fiber-optic lines as long as the discount is applied to the associated mobile communications services, even if physical connection of the fiber optic line is not complete at the central office of NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION (“NTT East”) and NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION (“NTT West”).

Broadband

Services
SoftBank Hikari
An integrated service of fiber-optic service using the wholesale fiber-optic connection of NTT East and NTT West with ISP (Internet Service Providers) service
Yahoo! BB hikari with FLET'S
An ISP service offered as a package with NTT East or NTT West's FLET'S Hikari Series fiber-optic connection
Yahoo! BB ADSL
A service combining an ADSL connection and an ISP service
Subscribers
SoftBank Hikari subscribers
Number of users for which physical connection of a fiber-optic line at central office of NTT East or NTT West is complete. Includes the number of subscribers to SoftBank Air
Yahoo! BB hikari with FLET'S subscribers
Number of users of Yahoo! BB hikari with FLET'S for which physical connection of a fiber-optic line at the central office of NTT East or NTT West is complete and who are provided with services
Yahoo! BB ADSL subscribers
Number of users of Yahoo! BB ADSL for which physical connection of an ADSL line at the central office of NTT East or NTT West is complete
ARPU
ARPU
Average Revenue Per User per month
Revenue of each broadband service / the number of active subscribers (rounded to the nearest 10 yen)
SoftBank Hikari ARPU
SoftBank Hikari revenue (basic monthly charge + provider charge + Hikari BB unit rental charge + White hikari Phone and BB Phone voice call charge + optional service charges, etc.) / the number of active SoftBank Hikari subscribers
[Note]
  • *
    Calculation of SoftBank Hikari ARPU includes revenues and subscribers of SoftBank Air.
Yahoo! BB hikari with FLET'S ARPU
Yahoo! BB hikari with FLET'S revenue (provider charge + Hikari BB unit rental charge + BB Phone voice call charge + optional service charges, etc. (excluding usage charges for FLET'S hikari and FLET'S hikari LIGHT)) / the number of active Yahoo! BB hikari with FLET'S subscribers
Yahoo! BB ADSL ARPU
Yahoo! BB ADSL revenue (basic monthly charge + provider charge + modem rental charge + BB Phone voice call charge + optional service charges, etc.) / the number of active Yahoo! BB ADSL subscribers
Number of active subscribers
The total of the monthly numbers of active subscribers for the relevant period ((subscribers at the beginning of the month + subscribers at the end of the month) / 2)