KDDI CORP
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See all $KDDIF insider activity →KDDI, NTT DOCOMO, SoftBank, and Rakuten Mobile signed an MoU to study 5G millimeter-wave infrastructure expansion. The goal is to improve coverage and quality through cross-operator collaboration, addressing challenges like signal attenuation and the need for more base stations.
KDDI will reduce roaming services for Rakuten Mobile, ending coverage in areas where Rakuten has its own base stations. KDDI cites increased traffic load from Rakuten users. Rakuten has over 10 million mobile lines but lags in infrastructure with 100,000 base stations compared to rivals' 300,000-400,000. Rakuten plans to spend 200 billion yen on base station construction. KDDI's April-June 2026 results show 33.3 million smartphone subscriptions and a 1.17% churn rate. Rakuten Group reported an o
KDDI has launched an accelerator program to help Japanese startups expand into the US market. The initiative offers access to venture capital firms, corporate customers, mentoring, and office space. The goal is to assist startups in building a customer base and business track record overseas.
Recent KDDIF coverage spans technology, financial news and sector analysis.
KDDI, NTT DOCOMO, SoftBank, and Rakuten Mobile signed an MoU to study 5G millimeter-wave infrastructure expansion. The goal is to improve coverage and quality through cross-operator collaboration, addressing challenges like signal attenuation and the need for more base stations.
KDDI will reduce roaming services for Rakuten Mobile, ending coverage in areas where Rakuten has its own base stations. KDDI cites increased traffic load from Rakuten users. Rakuten has over 10 million mobile lines but lags in infrastructure with 100,000 base stations compared to rivals' 300,000-400,000. Rakuten plans to spend 200 billion yen on base station construction. KDDI's April-June 2026 results show 33.3 million smartphone subscriptions and a 1.17% churn rate. Rakuten Group reported an o
KDDI has launched an accelerator program to help Japanese startups expand into the US market. The initiative offers access to venture capital firms, corporate customers, mentoring, and office space. The goal is to assist startups in building a customer base and business track record overseas.
KDDI said AI integration and cybersecurity revenue rose 19.2% year over year in Q1 FY2027. Connectivity data center revenue grew 20.6% and EBITDA grew at a similar pace, with margin above 40%. The company plans JPY 1 trillion of growth investment over three years and reported Q1 operating revenue up 5.1% and adjusted operating income up 21.1%.
KDDI said first-quarter FY2027 revenue tied to AI integration and cybersecurity rose 19.2% year over year. Connectivity data center operating revenue grew 20.6% and EBITDA rose at a similar pace with margins above 40%, while cloud infrastructure revenue grew more than 30%. KDDI plans JPY 1 trillion growth investment over three years and kept its full-year operating revenue forecast at JPY 1.21 trillion.
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KDDI, NTT DOCOMO, SoftBank, and Rakuten Mobile signed an MoU to study 5G millimeter-wave infrastructure expansion. The goal is to improve coverage and quality through cross-operator collaboration, addressing challenges like signal attenuation and the need for more base stations.
2 min readKDDI will reduce roaming services for Rakuten Mobile, ending coverage in areas where Rakuten has its own base stations. KDDI cites increased traffic load from Rakuten users. Rakuten has over 10 million mobile lines but lags in infrastructure with 100,000 base stations compared to rivals' 300,000-400,000. Rakuten plans to spend 200 billion yen on base station construction. KDDI's April-June 2026 results show 33.3 million smartphone subscriptions and a 1.17% churn rate. Rakuten Group reported an o
3 min readKDDI has launched an accelerator program to help Japanese startups expand into the US market. The initiative offers access to venture capital firms, corporate customers, mentoring, and office space. The goal is to assist startups in building a customer base and business track record overseas.
1 min readKDDI said AI integration and cybersecurity revenue rose 19.2% year over year in Q1 FY2027. Connectivity data center revenue grew 20.6% and EBITDA grew at a similar pace, with margin above 40%. The company plans JPY 1 trillion of growth investment over three years and reported Q1 operating revenue up 5.1% and adjusted operating income up 21.1%.
4 min readKDDI said first-quarter FY2027 revenue tied to AI integration and cybersecurity rose 19.2% year over year. Connectivity data center operating revenue grew 20.6% and EBITDA rose at a similar pace with margins above 40%, while cloud infrastructure revenue grew more than 30%. KDDI plans JPY 1 trillion growth investment over three years and kept its full-year operating revenue forecast at JPY 1.21 trillion.
5 min readKDDI launched Buffmee, a free AI app that uses content from Japanese media publishers. The company said the service is designed to improve reliability and expertise, with partners earning revenue tied to usage and citations back to original works. Buffmee includes features such as recipe search, bulk searches of railway magazine data, and exam practice questions, with about 150 content sources and plans to add more.
3 min readSamsung Electronics says it completed an AI-powered RAN Speed Optimizer trial with KDDI on KDDI’s commercial 5G Standalone network in Japan. The test used 100 MHz of 3.7 GHz TDD across hundreds of cells around Tokyo. Samsung reported average 31% 5G downlink throughput gains at peak, up to 52% in dense urban areas, citing AI-based cell parameter recommendations.
3 min readDriveNets software will be deployed in KDDI's commercial backbone network in 2025 to support the growing data demands of the AI era TOKYO, May 12, 2025 /PRNewswire/ -- KDDI Corporation ( Headquarters: Chiyoda-ku, Tokyo.
3 min read
