Area Code 9964 – Satsumasendai, Kagoshima

Geographic Overview

The +81 9964 area code is a geographic National Destination Code (NDC) assigned to the Satsumasendai region in Kagoshima Prefecture, located on the southern island of Kyushu, Japan. This code serves the city of Satsumasendai and its surrounding administrative districts, including the former towns of Hiwaki, Iriki, Kedoin, and Togo, which were merged into the expanded city in 2005. The area is known for its historical samurai residences, the Sendai River, and agricultural production.

Dialing Formats

When calling a landline within Satsumasendai from another part of Japan, subscribers must dial the trunk prefix 0, followed by the area code 9964 and the subscriber number. The complete national format is 0-9964-XXXXXX, where the subscriber number typically consists of six digits. For example, a local number might appear as 09964-123456.

For international callers, the Japanese country code +81 replaces the leading 0. Thus, the international dialing format becomes +81-9964-XXXXXX. For instance, to reach a business in Satsumasendai from abroad, one would dial +81 9964 123456. Note that the area code is always included, even when dialing from a mobile phone within Japan, as the NDC is mandatory for all calls to geographic numbers.

Administrative and Regulatory Context

This area code falls under the purview of the Ministry of Internal Affairs and Communications (MIC) of Japan and follows the ITU-T E.164 international numbering plan. The code is classified as a geographic number, meaning it is tied to a specific physical exchange area. Calls to this code are typically routed over the public switched telephone network (PSTN) or via VoIP services that support geographic numbering. As of the latest numbering plan updates, there are no overlay codes or 10-digit dialing requirements in this region; the 0-9964 prefix remains unique to the Satsumasendai area.

Caller Instructions

• Local callers within Satsumasendai: Dial the subscriber number directly without the area code (if using a landline in the same charging group). However, for clarity and to avoid misdialing, it is recommended to always use the full national format.
• Domestic callers from other regions in Japan: Dial 09964-XXXXXX.
• International callers: Dial your country's exit code (e.g., 011 from the US, 00 from most European countries), then 81 9964 XXXXXX. Do not include the leading 0.
• Mobile phone users in Japan: Always include the area code, as mobile networks require the full national number.

When storing numbers in international format, always use +81 9964 followed by the six-digit subscriber number. This ensures proper routing regardless of the caller's location.