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Learn about the format, types, and area codes of telephone numbers in Japan. Most numbers are 10 digits long, except for special numbers (3 digits) and non-geographic numbers (10 or 11 digits).
Find the area code for calling land lines in various cities and districts in Japan, when dialing from within Japan. The leading 0 is omitted when calling from outside Japan. See the map and the tables for details.
Text messaging, or texting, is the act of sending electronic messages between devices. Learn about the origin and evolution of SMS, the Short Message Service that started it all, and how it has grown to include multimedia and instant messaging.
SMS is a text messaging service that uses standardized communication protocols to exchange short messages over cellular networks. It was developed as part of the GSM standards and became widely popular worldwide with 3.5 billion active users by 2010.
AOL Mail offers secure and personalized email with features like AOL Mail, news, and weather for free. You can also access your email on the go with an iOS & Android app and get help from experts.
The Individual Number Card is an optional identity document issued to citizens of Japan and some foreign-residents. It stores personal information and is linked to the 12-digit Individual Number, which is used for various purposes such as health insurance and taxation.
Find out the emergency numbers to call in different countries, such as 112, 911, 999, or others. See the list of numbers for Africa, Asia, Europe, Oceania, and the Americas.
SMS spoofing is a technology that replaces the originating mobile number with alphanumeric text. It can have legitimate or illegitimate purposes, such as impersonating another person or company, or sending anonymous messages.