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5. Average monthly revenue per unit (ARPU) |
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Average monthly revenue per unit, or ARPU, is used to measure average monthly
operating revenues attributable to designated services on a per user basis. In
the case of our fixed line business, ARPU is calculated by dividing revenue items
in the operating revenues of our Regional Communications Services, that is, subscriber
lines services and ISDN, by the No. of active subscribers to the relevant services.
In the case of our cellular business, ARPU is calculated by dividing revenue
items included in the operating revenues from our Wireless Services, such as
revenues from Cellular (mova) services and revenues from Cellular (FOMA) services,
which are incurred consistently each month (i.e., monthly charges and voice/packet
transmission charges), by the No. of active subscribers to the relevant services
(the calculation of these figures excludes revenues that are not representative
of monthly average usage such as equipment sales and activation fees). We believe
that our ARPU figures calculated in this way provide useful information regarding
the monthly average usage of our subscribers. The revenue items included in the
numerators of our ARPU figures are based on our financial results comprising
our U.S. GAAP results of operations. |
| Notes : |
1 |
We separately compute ARPU for the fixed line business conducted
by each of NTT East and NTT West using two measures. |
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ARPU from telephone subscriber lines services, which is based
on operating revenues from monthly charges, call charges and FLET'S ADSL charges
attributable to our telephone subscriber lines services. |
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ARPU from ISDN, which is based on operating revenues from monthly charges,
transmission/call charges and FLET'S ISDN charges attributable to our ISDN. |
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2 |
Interconnection revenues are excluded in ARPU of Telephone Subscriber Lines
and ISDN Subscriber Lines. |
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3 |
In terms of No. of channels, transmission rate, and line use rate (base rate),
INS-Net 1500 is in all cases roughly ten times greater than INS-Net 64. For this
reason, one INS-Net 1500 subscription is calculated as ten INS-Net 64 subscriptions. |
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4 |
We compute ARPU for our cellular business using two aggregate measures. |
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Cellular Aggregate ARPU (FOMA+mova) = Voice ARPU (FOMA+mova) +
Packet ARPU (FOMA+mova). |
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Our Voice ARPU (FOMA+mova) is based on operating revenues related
to voice services, such as monthly charges and voice transmission charges, attributable
to our third generation FOMA and conventional mova services, and our Packet ARPU
(FOMA+mova) is based on operating revenues related to packet communication services,
such as monthly charges and packet transmission charges, attributable to our
third generation FOMA services and based on operating revenues related to i-mode
services, such as monthly charges and packet transmission charges, to our conventional
mova services. We also separately compute i-mode ARPU (FOMA+mova), as a subcomponent
of Packet ARPU (FOMA+mova).In particular, i-mode ARPU (FOMA+mova) is based on
operating revenues from monthly charges and packet transmission charges attributable
to our i-mode-related FOMA and mova services. |
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Cellular Aggregate ARPU (FOMA) = Voice ARPU (FOMA) + Packet ARPU (FOMA).
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Our Voice ARPU (FOMA) is based on operating revenues related to voice services,
such as monthly charges and voice transmission charges, and our Packet ARPU (FOMA)
is based on operating revenues related to packet communication services, such
as monthly charges and packet transmission charges, in each case attributable
to our third generation FOMA services.We also separately compute i-mode ARPU
(FOMA), as a subcomponent of Packet ARPU (FOMA).In particular, i-mode ARPU (FOMA)
is based on operating revenues from monthly charges and packet transmission charges
attributable to our i-mode-related FOMA services. |
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Cellular Aggregate ARPU (mova) = Cellular Voice ARPU (mova) + i-mode ARPU
(mova). |
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Our Voice ARPU (mova) is based on operating revenues related to
voice services, such as monthly charges and voice transmission charges, and our
i-mode ARPU (mova) is based on operating revenues related to i-mode services,
such as monthly charges and packet transmission charges, in each case attributable
to our conventional mova services. |
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5 |
We show ARPU for our i-mode using two aggregate measures. |
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i-mode ARPU is based on the No. of all subscribers who have active
cellular phones, regardless of whether the i-mode service is activated. |
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ARPU generated purely from i-mode is based on the No. of active subscribers
to the i-mode service only. |
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6 |
No. of DoPa single service subscribers, which had not been included in previous
reports, has been included in the No. of mova subscribers from the results for
the first six months of the fiscal year ending Mar. 31, 2005 in order to standardize
the definition of subscribers used by all the mobile operators in Japan. DoPa
single service subscribers and the revenues thereof are not included in the ARPU
calculations. |
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7 |
No. of active subscribers used in ARPU calculation are as below. |
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FY Results & Forecast: Sum of No. of active subscribers**(as
defined below) for each month from Apr. to Mar. |
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3Q Results: Sum of No. of active subscribers**(as defined below) for each
month from Oct. to Dec. |
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Nine Months Results: Sum of No. of active subscribers**(as defined below)
for each month from Apr. to Dec. |
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**active subscribers = (No. of subscribers at end of previous month + No.
of subscriber at end of current month)/2 |
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* Partial listing only. |
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Copyright (c) 2005 Nippon telegraph and telephone corporation
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