Nikkei Industry Sector
Telecommunications
Overview
Japan's telecommunications sector within the Nikkei 225 includes the country's major mobile and fixed-line carriers, which operate the digital infrastructure backbone serving both consumers and enterprises across Japan. These companies are transitioning from traditional voice and data carriers toward comprehensive digital services and IT solutions providers.
Current Trend
5G network buildout, enterprise cloud services, and AI-powered business solutions are the primary growth drivers. Japan's corporate sector—historically slow to digitize—is accelerating technology adoption under both competitive pressure and government policy support, creating significant demand for IT transformation services from carriers' enterprise divisions.
Companies in This Sector
4
Today's Avg. Price Change
+1.57%
Simple average of constituent stock price changes vs. previous close. Not a sector index.
Updated: 2026-09-01 (JST)
Position in Japan
Japan's telecommunications carriers operate in a mature domestic market with high penetration rates, where subscriber growth has largely plateaued. Government-mandated price reductions over recent years have intensified competitive pressure on consumer service margins, pushing carriers to differentiate through enterprise solutions and digital services.
Latest Press Releases
02
Sep
KDDI CORPORATION JP3496400007
2026-09-01 KDDI CORPORATION “KDDI will hold its largest business event in the group, "KDDI SUMMIT 2026".”
02
Sep
KDDI CORPORATION JP3496400007
2026-09-01 KDDI CORPORATION “"Office Lawson" opens its first store in another company's office.”
02
Sep
KDDI CORPORATION JP3496400007
2026-09-01 KDDI CORPORATION “Mitsubishi Corporation and KDDI launch a retail media business utilizing the content distribution service "Lawson Vision".”
01
Sep
SoftBank Corp. JP3732000009
2026-08-31 SoftBank Corp. “On August 31, 2026, the training vessel "Oshima Maru" will be used for securing communications and transporting supplies during disasters.”
01
Sep
NIPPON TELEGRAPH AND TELEPHONE CORPORATION JP3735400008
2026-08-31 NIPPON TELEGRAPH AND TELEPHONE CORPORATION “NTT DOCOMO's "docomo academy," which cultivates autonomous co-creation talent, expands its eligibility to include external companies – developing into a learning and co-creation platform that transcends companies and industries, with the 7th term starting in October 2026.”
01
Sep
NIPPON TELEGRAPH AND TELEPHONE CORPORATION JP3735400008
2026-08-31 NIPPON TELEGRAPH AND TELEPHONE CORPORATION “NTT AgriTechnology held a project report meeting and harvest festival for its data-driven agriculture demonstration project in Dien Bien Province, Vietnam.”
01
Sep
NIPPON TELEGRAPH AND TELEPHONE CORPORATION JP3735400008
2026-08-31 NIPPON TELEGRAPH AND TELEPHONE CORPORATION “NTT East Japan begins a pilot project to support decision-making at disaster response headquarters using AI-generated data – Yokosuka City and NTT East Japan compare response decisions with and without AI support.”
29
Aug
SoftBank Group Corp. JP3436100006
2026-08-28 SoftBank Group Corp. “IR Information August 28, 2026 (Progress of Disclosed Matters): Notice Regarding Change in Completion Date of Share Acquisition of Consolidated Subsidiary (LINE MAN CORPORATION PTE. LTD.).”
29
Aug
SoftBank Group Corp. JP3436100006
2026-08-28 SoftBank Group Corp. “Corporate Information: Regarding Moody's press release dated August 28, 2026, concerning its unofficial credit rating system.”
29
Aug
KDDI CORPORATION JP3496400007
2026-08-28 KDDI CORPORATION “Osaka Metro is conducting a pilot project to utilize a humanoid robot developed by KDDI and AVITA for its customer service and guidance services.”
29
Aug
NIPPON TELEGRAPH AND TELEPHONE CORPORATION JP3735400008
2026-08-28 NIPPON TELEGRAPH AND TELEPHONE CORPORATION “NTT Docomo, NTT Data, and Synspective have signed an agreement regarding the use of satellite imagery during disasters.”
29
Aug
NIPPON TELEGRAPH AND TELEPHONE CORPORATION JP3735400008
2026-08-28 NIPPON TELEGRAPH AND TELEPHONE CORPORATION “NTT Docomo Business, a world first, has confirmed the fully automated recovery of systems, including applications, in the event of a disaster between data centers located more than 600km apart, in collaboration with Hitachi.”
29
Aug
NIPPON TELEGRAPH AND TELEPHONE CORPORATION JP3735400008
2026-08-28 NIPPON TELEGRAPH AND TELEPHONE CORPORATION “NTT HumanEX will provide one-stop support for the development of DX and generative AI talent through its "e-learning + practical workshops," contributing to the realization of human capital management. ~NTT HumanEX and Cocoo have collaborated to launch the "DX Promotion Starting Package" and the "Generative AI Starting Package."~”
29
Aug
NIPPON TELEGRAPH AND TELEPHONE CORPORATION JP3735400008
2026-08-28 NIPPON TELEGRAPH AND TELEPHONE CORPORATION “Regarding the termination of services such as the "Disaster Message Dial (171)" by NTT East Japan in response to the 2026 Kumamoto Earthquake.”
28
Aug
SoftBank Corp. JP3732000009
2026-08-27 SoftBank Corp. “On August 27, 2026, the areas of collaboration will be expanded to include disaster relief and administrative DX, in addition to environmental conservation.”
28
Aug
SoftBank Corp. JP3732000009
2026-08-27 SoftBank Corp. “Announcement dated August 27, 2026: Regarding support measures in response to the heavy rains that began on August 27, 2026.”
28
Aug
NIPPON TELEGRAPH AND TELEPHONE CORPORATION JP3735400008
2026-08-27 NIPPON TELEGRAPH AND TELEPHONE CORPORATION “NTT DX Partners has established an "Official Partner Program" for "ZAKONE," an inter-company community for solving sleep-related issues. This program will launch in September 2026 as an annual partnership to deliver a "worldview of sleep" to society.”
28
Aug
NIPPON TELEGRAPH AND TELEPHONE CORPORATION JP3735400008
2026-08-27 NIPPON TELEGRAPH AND TELEPHONE CORPORATION “Fortience Consulting supports Nomura Real Estate Group in realizing new ways of working through the relocation of its headquarters.”
28
Aug
NIPPON TELEGRAPH AND TELEPHONE CORPORATION JP3735400008
2026-08-27 NIPPON TELEGRAPH AND TELEPHONE CORPORATION “NTT Docomo's support measures in response to the heavy rains that began on August 27, 2026.”
28
Aug
NIPPON TELEGRAPH AND TELEPHONE CORPORATION JP3735400008
2026-08-27 NIPPON TELEGRAPH AND TELEPHONE CORPORATION “NTT Docomo Business and Tokyo Electric Power Grid have begun an initiative to decentralize data centers using container DC parks.”