Sep 30, 2026, 01:32 UTC
KDDI will reduce its roaming network lending to Rakuten Mobile from October 1, ending service in urban areas of 18 designated major cities including Yokohama and Kobe.
Source:Sep 29, 2026, 02:56 UTC
Aplix announced that its subsidiary GlobalCast, in cooperation with KDDI, will support sponsorship solicitation and creative production for the Christmas event "BALLPARK Xmas YOKOHAMA KANNAI 2026" organized by an executive committee that includes DeNA and other companies.
Source:Sep 28, 2026, 08:24 UTC
Kakaku.com decided at its board meeting on September 28, 2026 to dissolve its capital alliance agreement with KDDI, ending the arrangement under which Kakaku.com accepted one KDDI-nominated director candidate, while the business alliance continues and KDDI's shareholding ratio in Kakaku.com remains unchanged.
Source:Sep 28, 2026, 04:53 UTC
KDDI announced a partnership with Japan Post to collaborate on drone operations, establishing takeoff and landing bases at post offices nationwide and targeting full-scale cooperation from fiscal 2027 onward.
Source:Sep 25, 2026, 09:18 UTC
KDDI began a demonstration of distributed computing for physical AI across multiple data centers in cooperation with Morgenrot and Tohoku Electric Power Group's Talknet.
Source:Sep 16, 2026, 06:40 UTC
KDDI, NTT Docomo, SoftBank and Rakuten Mobile announced on September 16 that they have begun joint studies to expand the usable area of millimeter-wave spectrum for 5G, having signed a memorandum on September 11.
Sep 15, 2026, 01:15 UTC
Finecut sold the film Wind Up: The Movie to Emperor Cinemas for Hong Kong and Macao, adding to earlier deals with Best Cinema, KDDI, Purple Plan, Caichang and Sahamongkolfilm International.
Source:Sep 15, 2026, 01:15 UTC
Finecut sold the film Wi-Fi Love In The Palace to KDDI Corporation for Japan, Catchplay+ for Indonesia and Cola Films for Taiwan.
Source:Sep 14, 2026, 09:00 UTC
Rakuten Group's mobile unit Rakuten Mobile has invested only 40-70% of what rivals NTT Docomo, KDDI and SoftBank spent on mobile network capex over the seven years since its 2019 entry, and its roaming contract with KDDI expires at the end of September.
Source:Sep 13, 2026, 20:00 UTC
au Energy & Life, a KDDI-affiliated power retailer, began selling an electricity rate plan in May that installs storage batteries in homes for free and returns revenue from market operations.
Source:Sep 10, 2026, 01:33 UTC
On September 9, 2026, Japanese ADRs traded broadly lower against the Tokyo comparison at 153.35 yen per dollar, with TDK, Mitsubishi Electric and Disco among the decliners, while Chicago Nikkei 225 futures settled at 64,175, down 970 yen from the Osaka day session.
Source:Sep 8, 2026, 02:45 UTC
KDDI decided to scale back roaming support for Rakuten Mobile from September 2026, ending access to its network in areas where Rakuten already has its own base stations while continuing service in mountainous and sparsely populated regions.
Source:Sep 4, 2026, 05:09 UTC
KDDI announced on September 4, 2026 that it will launch a new home optical line service called 'au Hikari Plus' starting September 17, which combines 5G mobile connectivity to improve disaster resilience and allows use before optical installation is completed.
Source:Sep 2, 2026, 20:00 UTC
NTT Docomo, KDDI, and SoftBank reported consolidated results for April-June 2026, all showing revenue and profit increases, with KDDI's operating profit up 21.1% year-on-year.
Source:Aug 31, 2026, 08:07 UTC
KDDI and Mitsubishi Corporation launched a retail media business at Lawson stores, establishing a new jointly-owned company to deliver digital signage advertising optimized with Ponta loyalty data.
Source:Aug 21, 2026, 07:40 UTC
KDDI, NTT, and five other companies announced on August 21 that they have formulated international design guidelines for all-photonic networks (APN) to promote their adoption.
Source:Aug 20, 2026, 06:46 UTC
KDDI announced on August 20 that it will launch a new AI-powered service, KDDI Market Compass, to support commercial facility development for real estate companies, jointly with JR West Japan SC Development.
Source:Aug 19, 2026, 10:53 UTC
Japan's Personal Information Protection Commission issued administrative guidance to KDDI on August 19, 2026, over inadequate security measures that led to a data leak of personal information via its corporate email system.
Source:Aug 19, 2026, 06:42 UTC
KDDI announced on August 19 that its subsidiary menu, a food delivery service, will cease operations at the end of September and will be dissolved and liquidated afterward.
Source:Aug 19, 2026, 00:53 UTC
WeChat Pay HK announced a partnership with Japanese e-wallet au PAY to enable cross-border Hong Kong dollar payments at au PAY merchant locations across Japan, with transactions converted at real-time exchange rates and no fees.
Source:Aug 10, 2026, 16:45 UTC
KDDI Corporation's ADR shares gapped down at market open on Monday, opening at $17.82 versus the previous close of $18.50.
Source:Aug 4, 2026, 08:01 UTC
HTC launched its AI smart glasses VIVE Eagle in Japan through a partnership with KDDI, making it available via au +1 collection and various retail channels.
Source:Jul 28, 2026, 01:00 UTC
Google and KDDI launched the AI Startup Support Program to back Japanese AI startups with funding, AI tools, compute credits, and support.
Source:Jul 9, 2026, 15:15 UTC
KDDI confirmed unauthorized access on June 17, 2026, exposing up to 14.22 million email addresses and passwords from six ISPs.
Source:Jul 9, 2026, 12:18 UTC
Hackers exploited a zero-day vulnerability in a third-party system to access KDDI's email system for ISPs, impacting 12 million people.
Source: