Area Code 2659 – Ina, Nagano
The phone area code for Ina, Nagano is 2659 (international format +812659). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Ina, Nagano
Geographic Coverage and Administrative Jurisdiction
The area code 02659 is a geographic National Destination Code (NDC) assigned to the Ina region in Nagano Prefecture, Japan. This code serves the city of Ina and its surrounding municipalities, including the towns of Minamiminowa, Nakagawa, and the former villages of Takato and Hase, which are now part of the expanded Ina city area. The region is located in the southern part of Nagano Prefecture, within the Ina Valley, and is known for its mountainous terrain and agricultural production.
Dialing Formats and Caller Instructions
When calling a landline in the Ina area from within Japan, you must dial the full 10-digit number, which includes the area code and the subscriber number. For example, to call a local number such as 52-1234, you would dial 02659-52-1234. Note that the area code is always required, even for local calls within the same NDC area, as Japan uses closed dialing plans for geographic numbers.
For international callers, the format is +81 2659 52-1234. The leading zero of the area code is dropped when dialing from abroad, and the country code for Japan is +81. For instance, from the United States, you would dial 011 81 2659 52-1234; from the UK, 00 81 2659 52-1234.
Overlay and Numbering Considerations
Currently, there is no overlay code for the 02659 area. The region uses a single area code, and numbers are 10 digits long when dialed domestically (including the leading zero). The subscriber numbers within this code typically range from 2 to 5 digits, resulting in a total of 10 digits for the complete domestic number. This structure is standard for rural and semi-urban areas in Japan.
Service and Usage Notes
Numbers under 02659 are primarily used for fixed-line PSTN services, though some may be assigned to VoIP providers that offer geographic numbers. These numbers are not portable to other geographic areas, but they can be ported between different service providers within the same area code, subject to Japan's number portability regulations. For callers, standard domestic rates apply, and for international callers, charges are based on the rates set by their telecom operator for calls to Japan.