June 30, 2021 Establishment and Notification of Standard Charge Indices for Specified Telecommunications Services Provided by NTT East and NTT West

Under Paragraph 1, Article 21, of the Telecommunications Business Act (Act No. 86 of 1984), the Ministry of Internal Affairs and Communications (MIC) established standard charge indices for specified telecommunications services (i.e., subscriber phone, ISDN, and public telephone services) provided by Nippon Telegraph and Telephone East Corporation and Nippon Telegraph and Telephone West Corporation (NTT East and NTT West). The standard charge indices are valid for one year, beginning on October 1, 2021, and ending on September 30, 2022, and MIC has today notified NTT East and NTT West of the indices.

Notified standard charge index

Type of specified telecommunications service NTT East NTT West
Voice transmission service*1 95.1
Voice transmission service that is provided by using Category I designated terminal system transmission line facilities only*2 102.6
  • *
    The initial value of the standard charge index is 100 (charge index as of April 1, 2000).
    The figures in parentheses are the current standard charge index (from October 1, 2020, through September 30, 2021).
  • *
    1. Voice transmission basket: Subscribed phone/ISDN (city/prefecture intercity call charges), public telephone (call charges), directory assistance charges
  • *
    2. Subscriber line sub-basket: Subscribed phone/ISDN (basic charges and facility installation fees).


For further information about this press release, please fill in the inquiry form and submit it to MIC on the website

International Policy Division, Global Strategy Bureau, MIC

TEL: +81 3 5253 5920

FAX: +81 3 5253 5924