August 2, 2022 Aggregation and Provisional Calculation of Internet Traffic in Japan

To grasp the actual state of fixed broadband internet traffic (communications volume) in Japan, the Ministry of Internal Affairs and Communications (MIC) aggregated and estimated the amount of traffic as of May 2022 and summarized the results. MIC made this provisional calculation under the cooperation of nine Internet Service Providers (ISPs),^{(Note 1)} five Internet Exchange (IX) organizations,^{(Note 2)} and some researchers.^{(Note 3)}

1. Main points

The total download traffic of Japan’s fixed broadband internet service^{(Note 4)} subscribers as of May 2022 was estimated to be approximately 26.0 Tbps (approximately 187 GB per contract per month^{(Note 5)}), i.e., an increase of 8.8% year-on-year.

• Note 1
  Nine ISPs—Internet Initiative Japan Inc.; NTT Communications Corporation; NTT Docomo Inc. (formerly NTT Plala Inc.); OPTAGE Inc.; KDDI Corporation; JCOM Co., Ltd.; SoftBank Corp.; Nifty Corporation; and BIGLOBE Inc.
• Note 2
  Five IX organizations—Internet Multifeed Co.; Equinix Japan K.K. ; Japan Internet Exchange Co., Ltd.; BBIX, Inc.; and the WIDE Project.
• Note 3
  ESAKI Hiroshi, Professor, the University of Tokyo; KATO Akira, Professor, Keio University; CHO Kenjiro, Director, IIJ Research Laboratory; SEKIYA Yuji, Professor, the University of Tokyo; and FUKUDA Kensuke, Associate Professor, National Institute of Informatics.
• Note 4
  Services for individual users (FTTH, DSL, CATV, and FWA) (but partly including services for corporate users).
• Note 5
  One month is calculated as 30.4375 days.

2. Results of aggregation and provisional calculation

The aggregation values relating to this press release will be published in the Information and Communications Statistics Database.

• *
  The published material is in Japanese only.