171 Disaster Emergency Message Dial is a service that enables you to post and check safety status and other information by voice, using the phone number of a person in the disaster zone as a key.
The 171 service can be used from fixed lines, INS net, public phones, HIKARI Denwa optical fiber telephones, and special public phones that are registered with either NTT East Japan or NTT West Japan, as well as NTT DOCOMO mobile phones.
For information about use with other phones, please contact your communications service provider.
▼ For details of services, please see:
*The 171 Disaster Emergency Message Dial service is provided through the cooperation of the various telecommunications carriers.