Area Code 9974 – Yakushima, Kagoshima

Overview of Area Code 9974

Area code 9974 is a geographic National Destination Code (NDC) assigned to the island of Yakushima, located in the southern part of Kagoshima Prefecture, Japan. This code is part of the Japanese telephone numbering plan, which adheres to ITU-T E.164 recommendations. The code 9974 is used for fixed-line (PSTN) services on the island, which is renowned for its ancient cedar forests and UNESCO World Heritage status.

Geographic Coverage and Administration

Yakushima is a rugged, mountainous island situated approximately 60 kilometers south of Kyushu. The area code covers the entire island, including the main town of Miyanoura and the smaller settlements of Anbo, Koseda, and Nagata. Administratively, the island falls under the jurisdiction of Kumage District, Kagoshima Prefecture. The numbering area is served by Nippon Telegraph and Telephone (NTT) East/West, which manages the local exchange infrastructure.

Dialing Formats and Instructions

When calling a fixed-line number on Yakushima, the national format is 0-9974-X-XXXX, where 0 is the trunk prefix, 9974 is the area code, and the subscriber number typically consists of a one-digit exchange code (X) followed by four digits. For example, a local number might appear as 0-9974-2-3456.

• Local calls (within Yakushima): Dial the subscriber number without the area code. For instance, to call 2-3456, simply dial 2-3456.
• National calls (from elsewhere in Japan): Dial the trunk prefix 0, then the area code 9974, followed by the subscriber number: 0-9974-2-3456.
• International calls (from outside Japan): Dial the international access code (e.g., 011 from the US, 00 from most countries), then Japan's country code +81, then the area code without the leading zero, followed by the subscriber number: +81-9974-2-3456.

Overlay and Numbering Considerations

As of the latest ITU-T and MIC (Ministry of Internal Affairs and Communications) data, there is no overlay code for Yakushima. The 9974 area code is unique to this region, and no additional area codes have been introduced. However, with the increasing adoption of VoIP and IP-based services, some numbers may be assigned to non-geographic providers, but the traditional PSTN allocation remains geographic.

Caller Guidance

For callers within Japan, it is essential to include the trunk prefix 0 when dialing from outside the local area. For international callers, remember to drop the leading 0 and use the country code +81. Always verify the complete number with the recipient, as misdialing the area code can result in a call to a different region in Kagoshima, such as 0997 (which covers the mainland part of the prefecture).