Disaster Preparedness

KDDI's Approach

As a designated public institution under the Disaster Countermeasures Basic Act, we have formulated a business continuity plan (BCP) for large-scale natural disasters as an emergency response policy to ensure the stable provision of telecommunications services at all times under any circumstance. We are working to build an organizational structure capable of responding to different types of disasters and implementing a suite of measures in partnership with various relevant organizations.

Business Continuity Planning

Our BCP for large-scale natural disasters is based on the principles of ensuring the safety of our employees and their families, performing our responsibility as a designated public institution to ensure the continuity of telecommunications services and supporting our stakeholders. It stipulates a range of measures that cover different stages, from the initial response at the occurrence of a disaster through full-scale restoration to relief activities in the affected areas.
The effectiveness of the BCP is assessed during the twice-yearly disaster preparedness drills, and any issues identified in the exercise are addressed. An annual PDCA cycle is applied in the ongoing effort to strengthen the foundation of our emergency response structure further.

Disaster Response Framework

Establishing a Disaster Response Headquarters in Times of Disaster

Natural disasters are unpredictable and can strike any time. We have defined the criteria for establishing a Disaster Response Headquarters in advance to act proactively in the event of a natural disaster that meets these criteria.
In the event of the Disaster Response Headquarters being established, it will be headed by the President. The headquarters will maintain close communication and work in cooperation with local response offices to lead our efforts to restore damaged networks and facilities as quickly as possible, support the customers in affected areas and offer aid to emergency shelters.

Action against Pandemic Influenza and Other Epidemics

Based on the Guidelines for the Prevention and Control of Pandemic Influenza approved in February 2009 at the council on countermeasures related to pandemic/avian influenza and other epidemics, we formulated the Plan for Maintaining Company-wide Operations in the Event of an Outbreak of a New Strain of Influenza to ensure employees' health as well as appropriate responses so that we can maintain the telecommunications services for our customers in the event of an outbreak of a pandemic influenza.
The "Plan for Maintaining Company-wide Operations in the Event of an Outbreak of a New Strain of Influenza" also includes countermeasures against new coronavirus infection and various other infectious diseases.

Introduction of automation at two locations (east and west) for peace of mind even in times of disaster

KDDI has enhanced DX at its two locations in Tokyo and Osaka, introducing efficient and integrated operation of multiple services and service monitoring that leverages operational automation functions.
By utilizing the operational automation function at both the Tokyo and Osaka sites, even in the event of a large-scale disaster that makes it difficult to operate at either site, the same operational work as in normal circumstances will be possible, providing more stable communications than ever before.

au Disaster Recovery Support System

To get a quick understanding of the situation during a disaster and formulate an appropriate recovery plan, we have deployed the au Disaster Recovery Support System at 10 technical centers in Japan. The system provides centralized management of information about regional damage, conditions at key sites and emergency shelters and evacuation routes.
This information is reflected on maps in real time to identify high-priority areas, enabling us to provide effective recovery response even when the damage is widespread.

Facility Systems to Maintain Communications during a Disaster

Multi-Route Core Transmission Lines and Route Distribution

To ensure stable communications, we distribute telecommunications equipment capacity and establish dual communication lines (terrestrial optical fiber) as well as the system that uses automated switching to secure communications network when there is a failure. Submarine cables are also used to provide multiple communication lines, ensuring a highly reliable network. In the event of trouble, bypass measures are implemented to secure communications.
We are enhancing the disaster resistance of communication stations and telecommunication facilities, and increasing the deployment of mobile power supply vehicles and emergency generators so that we can quickly supply power to communication facilities in the disaster area. Furthermore, to ensure communications services in disaster-hit areas, we reinforced the wireless entrance network as well as vehicle-mounted and portable base stations and equipped around 2,200 mobile phone base stations with batteries capable of operation for 24 hours or longer.

Temporary Base Stations

KDDI OCEAN LINK and KDDI CABLE INFINITY, owned by the KDDI Group, are equipped with a base station that provides mobile phone services during disaster situations when there is no land-based base station that can provide coverage.
In the future, we will conduct repeated demonstrations of "aircraft base station" to enable mobile phone use from the sky with the aim of commercializing mobile phone services in the event of a disaster even from the sky.

Providing Disaster Response Services

Service name Content
au Disaster Response App

Disaster Message Board Service, Emergency Email Service,
Disaster Voice Message Service, Disaster Information

au Disaster Preparedness account (+ message official account)

Disaster Message Board, Disaster Information, and Registered Area Disaster and Evacuation Information Mail

Disaster Message Board Service

A service that enables safety confirmation at times of large-scale disaster

Emergency Email Service

A service that sends disaster and evacuation information provided by national and local governments, special weather and eruption-related warnings, tsunami warnings and earthquake early warnings to all au mobile phones in the affected area

Registered Area Disaster and Evacuation Information Mail

Service to receive emergency alert e-mails and disaster/evacuation information distribution information for registered areas

Service Trial

Customers can try using the disaster message board service and the disaster voice messaging service
Trial Period:

  • 1st day and 15th day of the month (0:00-24:00)
  • 1st to 3rd day of January (January 1 at 12:00-January 3 at 24:00)
  • Disaster Preparedness Week (August 30-September 5)
  • Disaster Preparedness and Volunteer Week (January 15-21)

Collaboration with Disaster-Related Organizations during Normal Times

We at KDDI are actively involved in emergency preparedness events organized by national and regional governments and emergency drills held in partnership with various coordinating organizations.
At emergency preparedness events, we focus mainly on informing the residents about the emergency services we offer at times of disaster, such as the disaster message board service, and on disseminating emergency preparedness information. We also work with the Japan Self-Defense Forces, local authorities and other relevant organizations to organize emergency drills, where we make the most of participating organizations' strengths to recreate highly realistic disaster situations. These internal and external drills test the effectiveness of our disaster response so that we can review and improve our preparedness.

Mutual Cooperation in the Transportation of Supplies during a Disaster

On September 11, 2020, KDDI and Nippon Telegraph and Telephone Corporation (NTT) entered into a social contribution coordination agreement in order to work toward the resolution of societal issues.
Based on this agreement, the two companies have established a system whereby they can use each other's ships to transport supplies during a large-scale disaster. We are also working to mutually cooperate in drills and educational activities to prepare for a disaster.

Safer and More Resilient Connected World