Area Code 1527 – Bihoro, Hokkaido

Overview of Area Code 1527

Area code 1527 is a geographic National Destination Code (NDC) within the Japanese numbering plan, assigned to the town of Bihoro and its surrounding areas in the Okhotsk Subprefecture of Hokkaido. This code is part of the historic telecommunication infrastructure that routes calls to fixed-line subscribers in this rural region. As with all geographic codes in Japan, the prefix is tied to a specific administrative area, and callers must use the full national or international format to connect successfully.

Geographic Coverage and Jurisdiction

The 1527 area code serves Bihoro Town, located in the Abashiri District of Hokkaido. This region is known for its agricultural landscape and proximity to the Okhotsk Sea. The code covers the town center and its rural outskirts, including areas such as Kamibihoro and Nishi-Bihoro. Administratively, Bihoro falls under the jurisdiction of the Hokkaido Prefectural Government, and the numbering allocation is managed by the Ministry of Internal Affairs and Communications (MIC) in Japan.

Dialing Formats and Instructions

For local callers within the same area code, it is possible to dial the subscriber number without the area code. However, for calls originating from outside the 1527 area but still within Japan, the national trunk prefix 0 must be used, followed by the area code and the subscriber number. The full national format is: 0-1527-XX-XXXX (where X represents the subscriber digits). For international callers, the country code for Japan is +81, and the leading zero of the area code is dropped. Thus, the international dialing format becomes: +81-1527-XX-XXXX. For example, a local number might be 01527-2-1234; from abroad, you would dial +81 1527 2 1234.

Overlay Considerations and Numbering

Currently, there is no overlay code for the 1527 area; it remains a standalone geographic code. Subscriber numbers in this area typically consist of 4 to 6 digits, depending on the exchange. The total length of a national significant number (NSN) is 10 digits, including the area code. This structure aligns with ITU-T E.164 recommendations for Japan.

Caller Instructions

If you are calling a Bihoro number from within Japan, always use the trunk prefix 0 before the area code. If you are calling from overseas, replace the leading 0 with +81. Ensure you have the correct subscriber number, as local numbers may be shorter than those in major cities. For any assistance, your local telecom provider can help clarify dialing procedures.