Area Code 2614 – Omachi, Nagano
The phone area code for Omachi, Nagano is 2614 (international format +812614). Browse local exchange codes (NXX) and carrier assignments below.
📍 Geographic Location of Omachi, Nagano
Geographic Overview
The area code 02614 is a geographic National Destination Code (NDC) assigned to the city of Omachi in Nagano Prefecture, Japan. Omachi is located in the northern part of Nagano Prefecture, within the Hida Mountains (Northern Alps) region. The code covers the administrative area of Omachi City, including its central districts and surrounding communities. The numbering area is part of the larger Nagano telecommunication region, but 02614 is specifically designated for Omachi and its immediate vicinity.
Dialing Formats
When calling a landline in Omachi from within Japan, the domestic trunk prefix 0 is dialed, followed by the area code 2614 and the subscriber number. The full national significant number (NSN) is typically 9 digits, excluding the trunk prefix. For example, a local number might be 0-2614-XX-XXXX. From outside Japan, callers must use the international access prefix (e.g., 011 in the US, 00 in most countries) followed by Japan's country code +81, then the area code without the leading zero: +81-2614-XX-XXXX. It is important to note that the area code is an integral part of the number and must be dialed even for local calls within Omachi, as Japan uses a closed dialing plan for geographic numbers.
Coverage and Administration
The 02614 area code is administered by the Ministry of Internal Affairs and Communications (MIC) and is allocated to Nippon Telegraph and Telephone East (NTT East) for fixed-line services. It serves residential, business, and government lines in Omachi City. The region is known for tourism, particularly around Lake Kizaki and the Northern Alps, and hosts several hotels and ryokan. Businesses in the area include agriculture, tourism, and small-scale manufacturing.
Caller Instructions
For local callers within Omachi, dial the full number including the area code: 0261-4X-XXXX (note that the area code is often written as 0261, with the next digit being part of the subscriber number; however, the official NDC is 02614, and the subscriber number length varies). For callers from other parts of Japan, dial 0-2614-XX-XXXX. International callers should dial +81-2614-XX-XXXX. No overlay codes are currently in effect for this area, so the 02614 code is unique to Omachi.