Emergency Free Wi-Fi Service 00000JAPAN

Poste date: Wednesday, May 18, 2022

There are several types of natural disasters in Japan such as earthquakes, typhoons, and floods. During an emergency situation, having an Internet Connection is very important and can potentially save yourself and your family’s life.

With an internet connection, you can post or access information on social media networks (Twitter, Facebook, LINE, WhatsApp, Messenger etc) even when your celluar network connection does not work. It’s also very useful accessing the latest information about your area via radio or TV and many kinds of medias which you can watch/listen via internet.

In the event of a disaster, you can use a Free Wi-Fi Connection called 00000JAPAN (Five Zero Japan).

What is 00000JAPAN (Five Zero Japan) and Where to Find it

Image from Wireless LAN Business Promotion Association

“00000JAPAN” (Five Zero Japan) is a Free Wi-Fi Service which is open to the public and can be used by anyone in the event of a disaster.

It’s only accessible during a disaster in specific areas. The connection is provided by Japanese mobile phone carriers such as Docomo, AU and Softbank.

To find 00000Japan’s connection, you need to go to an area where there are public wireless LAN spots installed by mobile phone carriers. The spots are normally at major stations, public facilities, and commercial area where people gather (e.g. shopping malls, community centers, major cafes, restaurants, airports, convenient stores etc.).

Click here to watch the official explanation on YouTube.

How to Use 00000JAPAN (Five Zero Japan)

Image from Wireless LAN Business Promotion Association

When 00000Japan is accessible to the public, go to an area where it’s available (example places are mentioned above). Then you will be able find the SSID (Service Set Identifier) “00000JAPAN” in your Wi-Fi setting. Simply select the “00000JAPAN” network with your device then your device will be automatically connected to the Wi-Fi.

As it’s open to everyone, the authentication and encryption are not performed. It’s important to take precautions to protect your personal information while using the connection.

00000Japan’s Security Considerations

As 00000JAPAN is only for emergency situations, the connection is open to everyone. This means that the connection is not secure. There is a risk of having person information stolen so don’t use the connection for Internet Banking or any shopping sites which require personal information, ID's or passwords.

If you need to type in sensitive information, use a mobile VPN or your mobile cellular connection once it becomes available.

Beware of Fake SSIDs

What is more important is that people can create a FAKE 00000JAPAN SSID because it’s not limited to only communication carriers. It is also possible for a malicious person to set up and operate a wireless LAN access point with the same SSID of 00000JAPAN using tethering or a mobile Wi-Fi router.

It will be very difficult to know which is fake or genuine, therefore it’s very important not to input any important data or personal information while using the 00000JAPAN wifi connection.

There may also be other Fake SSIDs such as oooooJAPAN (using o instead of the number zero) or 000000JAPAN (0x6 instead of 5), instead of 00000JAPAN. It can be confusing and in the event of disaster, there is a high risk that you may choose the fake SSID by mistake.

Important Things to Do After Using 00000JAPAN

It’s also important to DELETE the network when it’s no longer necessary so that your phone doesn't automatically connect to it without your permission.

For iPhone users, go to “Settings” > “Wi-Fi” > “Tap i Button” > “Delete this network setting”.

Please don’t forget to cancel the “automatic connection” (Auto-Join) to avoid a situation where your device will choose to connect to the 00000JAPAN wifi automatically without you realizing.

Other Useful Links



  • Japan and Earthquakes: Why They Happen and How They are Measured

    Explore the relationship between Japan and earthquakes, including what makes them happen, how they are measured, and how Japan adapts in the face of this disaster today. JMA seismic intensity scale is used in Japan, tremors are measured on a 10-step scale of 0 through 7.
  • Useful Free Apps and Websites to Protect You from Natural Disasters in Japan​

    There are several Apps and Websites in Japan that provide information about natural disasters in English. Here are some of the must-have Apps and informative websites to help you stay prepared in the event of a natural disaster.
  • Japanese warning system - J-ALERT

    J-ALERT is Japan's National Instant Warning System. The alert will come when the government transmits emergency information instantly to the residents of the whole country. The Meteorological Agency transmits information to the system about an earthquake, a tsunami, a volcano, etc. The Cabinet Secretariat is responsible for sending information about ballistic missiles, aviation attacks, guerrilla attacks, mega terrorism, etc.
  • Japan Typhoon Season: How to Prepare for a Disaster

    While earthquakes are the most associated natural disaster with Japan, typhoon season should be taken seriously as well. Learn how to prepare with this guide.
  • Floods in Tokyo and Safety Tips and Preparation

    Japan has an average annual rainfall of 1718 mm, which is about twice the global average (880 mm). Here's some information about rainfall in Tokyo and what you need to do to stay safe in the event of a flood while in Japan.
  • Emergency Evacuation Backpack for Natural Disasters in Japan

    Its best to always be prepared for an emergency evacuation while in Japan. It is advisable to have an evacuation bag prepared in case of an emergency evacuation while in Japan due to natural disasters such as an earthquake, fire, a tsunami, your lifeline being cutoff, etc.