SoftBank offers a Disaster Message Board service that allows users to register, confirm, and delete their whereabouts and safety in the event of a major disaster such as an earthquake with Seismic Intensity of 6 lower and above. This service also enables users to automatically send notification messages to pre-registered email addresses of their families and friends, informing them that they have registered a message on the SoftBank Disaster Message Board. The use of this service does not incur any packet charges, except for certain operations such as downloading and installing the application via cellular network access to other carriers' Disaster Message Boards. To ensure user authentication, SoftBank sends out the "contractor's unique ID" and "phone number". Additionally, users have the option to simplify input when searching for safety information by obtaining a phone number from a contact.

In the event of a major disaster, SoftBank provides a Disaster Message Board service that allows users to register their whereabouts and safety. This service enables users to send notification messages to their pre-registered email addresses, informing them that they have registered a message on the SoftBank Disaster Message Board. The use of this service does not incur any packet charges, except for certain operations such as downloading and installing the application via cellular network access to other carriers' Disaster Message Boards. To ensure user authentication, SoftBank sends out the "contractor's unique ID" and "phone number". Users also have the option to simplify input when searching for safety information by obtaining a phone number from a contact.

SoftBank's Disaster Message Board service is designed to assist users in the event of a major disaster. Users can register their whereabouts and safety on the platform, and also send notification messages to their pre-registered email addresses. This service does not require any packet charges, except for specific operations such as downloading and installing the application via cellular network access to other carriers' Disaster Message Boards. To authenticate the user's identity, SoftBank sends out the "contractor's unique ID" and "phone number". Additionally, users have the option to simplify input when searching for safety information by obtaining a phone number from a contact.