Area Code 41 – Chungnam

Geographic Coverage and Administrative Jurisdiction

The +82 41 country code and area code combination designates the Chungcheongnam-do (Chungnam) province in the western part of South Korea. This region is administratively divided into several cities and counties, with the principal urban centers being Cheonan, Asan, Seosan, Dangjin, and Gongju. The code also covers the major port city of Pyeongtaek, which, despite being geographically adjacent, falls under the Gyeonggi province but shares the 41 numbering area due to historical telecom boundaries. The numbering plan area (NPA) 41 is a geographic code, meaning that the assigned numbers are tied to a physical location and are used for fixed-line (PSTN) services, including residential, business, and public payphones.

Dialing Formats and Caller Instructions

For local callers within the Chungnam region, the area code is often omitted when dialing another local number. However, for calls originating from outside the 41 area but still within South Korea, the national trunk prefix '0' must be dialed before the area code, followed by the subscriber number. For example, to call a fixed line in Cheonan from Seoul, you would dial 041-XXX-XXXX. International callers must use the South Korea country code +82, drop the leading '0', and then dial the area code and subscriber number: +82 41-XXX-XXXX. When dialing from a mobile phone within South Korea, the same national format applies, but it is essential to include the area code for fixed-line destinations.

Number Structure and Overlay Considerations

Subscriber numbers in the 41 area are typically seven or eight digits long, depending on the specific city and the age of the number allocation. The total length of a national significant number (NSN) for a geographic number in South Korea is usually 9 or 10 digits, including the area code. As of the latest ITU-T E.164 guidelines, there are no overlay codes in this region; the 41 code is unique to Chungnam. However, due to the increasing demand for telecommunication services, some new numbers have been introduced with an additional digit, resulting in a 10-digit NSN format for certain exchanges.

Services and Usage

The 41 area code supports a wide range of fixed-line services, including analog and digital voice, ISDN, and xDSL broadband. In recent years, VoIP services have also been assigned numbers from this geographic range, although they are not location-bound in a strict sense. For businesses, having a local Chungnam number can enhance customer trust and local presence. For callers, it is important to note that calls to 41 numbers from mobile networks are charged at standard national rates, which may vary depending on the caller's mobile plan. International callers should check with their service provider for applicable international tariffs.