Area Code 1541 – Teshikaga, Hokkaido

Overview of Area Code 1541

Area code 1541 is a geographic National Destination Code (NDC) within the Japanese numbering plan, assigned to the town of Teshikaga in the eastern part of Hokkaido Prefecture. This region falls under the administrative jurisdiction of the Kushiro Subprefecture and is known for its proximity to natural landmarks such as Lake Kussharo and Lake Mashu. The code serves the town center and its surrounding rural districts, including the former village of Kiyosato, which was merged into Teshikaga in 2005.

Geographic Coverage and Dialing Formats

The 1541 area code covers the entirety of Teshikaga town, including the residential and commercial zones near JR Hokkaido's Senmo Line stations (e.g., Teshikaga Station). It is a classic geographic code, meaning the number is tied to a fixed physical location and is primarily used for landline (PSTN) services.

When calling a Teshikaga number from within Japan, you must dial the trunk prefix 0, followed by the area code 1541 and the subscriber number (typically 5 to 6 digits). For example, a local number such as 55-1234 would be dialed as 01541-55-1234 from elsewhere in Japan.

For international callers, the format follows the ITU-T E.164 standard: replace the leading 0 with Japan's country code +81, then dial the area code without the trunk prefix. The same number becomes +81 1541-55-1234 when called from abroad. Note that the area code is separated from the subscriber number by a hyphen for readability, but the actual dialing sequence is continuous.

Overlay and Numbering Considerations

As of the latest ITU-T and Ministry of Internal Affairs and Communications (MIC) data, there is no overlay code for the 1541 area. The region does not require 10-digit dialing for local calls; however, when calling from a mobile phone, the full 10-digit number (including the leading 0) is always required. Subscriber numbers in this area are typically 5 to 6 digits long, and the total length of a domestic national significant number (NDC + subscriber number) is 9 digits.

Caller Instructions

• Local callers (within Teshikaga): You may dial the subscriber number directly without the area code, but using the full number is always safe.
• Domestic long-distance callers: Dial 0 + 1541 + subscriber number.
• International callers: Dial your country's exit code (e.g., 011 from the US, 00 from most European countries) followed by 81 + 1541 + subscriber number (omit the leading 0).

This area code is part of Japan's closed numbering plan, where all calls, even local ones, require the full national number when dialed from mobile networks. For VoIP services, the same dialing rules apply, but users should verify their provider's specific access requirements.