Principal Matters Name:   Association of Radio Industries and Businesses (ARIB) Number of Members (September 1, 2010):   Members : 232 Supporting Members : 3 Address:   Nittochi Bldg., 1-4-1, Kasumigaseki, Chiyodaku, Tokyo 100-0013, Japan The Competent Authorities:   Ministry of Internal Affairs and Communications Establishment:   May 15, 1995 Designated Corporation:   The Minister of Posts and Telecommunications designated ARIB as "the Center for Promotion of Efficient Use of the Radio Spectrum"under the provisions of the Radio Law on June 16, 1995 and the Minister of Internal Affairs and Communications designated ARIB as "the Designated Frequency Change Support Agency" under the provision of the Radio Law on August 20, 2001.   A map is available HERE  (link to map)   Tel. +81-3-5510-8590 Fax +81-3-3592-1103 e-mail info@arib.or.jp     (Note: due to language difficulties, initial non-Japanese language contacts should usually be made by fax or e-mail)