Area Code 2415 – Yanaizu, Fukushima

Overview of Area Code 2415

Area code 2415 is a geographic numbering plan area within the Japanese telecommunications network, specifically allocated to the town of Yanaizu (柳津町) in the Fukushima Prefecture. This code forms part of the national dialing plan under the ITU-T E.164 standard, where the full international number format is +81 2415 XXXXX. The prefix 2415 is a National Destination Code (NDC) that routes calls to a defined geographic area, distinct from mobile or non-geographic services. The region is served by the Tohoku regional telecommunications carrier, with fixed-line services primarily provided by NTT East (Nippon Telegraph and Telephone East).

Geographic Coverage and Administrative Jurisdiction

The 2415 area code covers Yanaizu town and its surrounding administrative districts, including parts of the Kawanuma and Minamiaizu regions. Yanaizu is located in the western part of Fukushima Prefecture, along the Tadami River, and is known for its historical hot springs and the Enzoji Temple. The numbering area includes not only the urban center but also rural and mountainous zones, where fixed-line services are essential for local businesses and residents. The area code is assigned by the Ministry of Internal Affairs and Communications (MIC) and is managed under the regional telecommunication administrative bureau.

Dialing Formats and Caller Instructions

For local callers within the same numbering area, the area code is often omitted, and only the subscriber number (typically 5 to 6 digits) is dialed. However, to call from outside the area but within Japan, callers must dial the trunk prefix 0 followed by the area code 2415 and the subscriber number. For example, to call a Yanaizu number (say 12345) from Tokyo, you would dial: 0 2415 12345. For international callers, the format is: +81 2415 12345, omitting the leading zero. It is crucial for foreign callers to note that the leading '0' is not included when dialing from abroad.

Overlay and Numbering Considerations

Currently, there is no overlay code for the 2415 area; the numbering plan remains a single-code geographic area. However, due to the gradual migration from PSTN to VoIP and IP-based services, some numbers may be assigned to VoIP providers, but they still retain the geographic significance. When dialing from a mobile phone, the same rules apply: the area code is required unless you are within the same geographic area. For emergency services, callers should dial 110 (police) or 119 (fire/ambulance) regardless of the area code.

Practical Examples for Callers

• Local call (within Yanaizu): Dial 12345 (if subscriber number is 5 digits).
• Domestic call from outside the area: Dial 0 2415 12345.
• International call from abroad: Dial +81 2415 12345.

Understanding these dialing protocols ensures seamless connectivity with businesses and residents in Yanaizu, Fukushima.