The number of IP phone subscriptions stood at million in Japan in 2025, which was a decrease of more than *** million compared to the previous year. IP telephony services make use of Internet Protocol technology and have been used in Japan since the 1990s.
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Ministry of Internal Affairs and Communications (Japan). (June 27, 2025). Number of subscriptions to IP phone services in Japan from 2016 to 2025 (in millions) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 17, 2026, from /statistics/615012/japan-ip-phone-subscriptions/
Ministry of Internal Affairs and Communications (Japan). "Number of subscriptions to IP phone services in Japan from 2016 to 2025 (in millions)." Chart. June 27, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 17, 2026. /statistics/615012/japan-ip-phone-subscriptions/
Ministry of Internal Affairs and Communications (Japan). (2025). Number of subscriptions to IP phone services in Japan from 2016 to 2025 (in millions). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 17, 2026. /statistics/615012/japan-ip-phone-subscriptions/
Ministry of Internal Affairs and Communications (Japan). "Number of Subscriptions to Ip Phone Services in Japan from 2016 to 2025 (in Millions)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 27 Jun 2025, /statistics/615012/japan-ip-phone-subscriptions/
Ministry of Internal Affairs and Communications (Japan), Number of subscriptions to IP phone services in Japan from 2016 to 2025 (in millions) ÌÇÐÄÆƽâ°æ, /statistics/615012/japan-ip-phone-subscriptions/ (last visited July 17, 2026)
Number of subscriptions to IP phone services in Japan from 2016 to 2025 (in millions) [Graph], Ministry of Internal Affairs and Communications (Japan), June 27, 2025. [Online]. Available: /statistics/615012/japan-ip-phone-subscriptions/
