Similar to 緊急通報用電話番号

Nuclear reactor safety system

Flare (countermeasure)

Lockdown

Telephone number

E.164

Telephone number mapping

MSISDN

.tel

List of telephone country codes

Area code

Notification

Telephone directory

Directory assistance

Telephone numbering plan

Telephone number portability

North American Numbering Plan

1-1-0

911 (emergency telephone number)

ECall

RECCO

SOS