Area Code 54 – Gyeongbuk

Overview of Area Code 54

Area code 54 is a geographic National Destination Code (NDC) within the South Korean national numbering plan, conforming to ITU-T E.164 standards. It serves the North Gyeongsang Province (Gyeongsangbuk-do), commonly abbreviated as Gyeongbuk. This region is located in the southeastern part of the Korean Peninsula and includes major cities such as Andong, Pohang, Gyeongju, and Gumi. The code is used for fixed-line (PSTN) services, including residential, business, and public payphones within the designated geographic area.

Geographic Coverage and Administration

Area code 54 is allocated to the administrative jurisdiction of Gyeongsangbuk-do. It covers both urban and rural districts, from the coastal city of Pohang to the inland historical city of Andong. The province is known for its industrial complexes (e.g., Gumi) and cultural heritage sites (e.g., Gyeongju). The numbering area is managed by the Korea Communications Commission (KCC) and operated by major fixed-line carriers such as KT, SK Broadband, and LG U+.

Dialing Formats

For local calls within the same area code, subscribers typically dial an 8-digit subscriber number without the area code. For example, a local call to a number in Andong might be dialed as 850-1234.

For calls from outside the area code but within South Korea, the trunk prefix 0 is used, followed by the area code and the subscriber number. The national format is 0-54-XXX-XXXX. For instance, to call a number in Pohang from Seoul, you would dial 054-270-1234.

For international callers, the country code for South Korea is +82. The leading trunk prefix 0 is dropped, and the number is dialed as +82-54-XXX-XXXX. For example, from the United States, you would dial 011 82 54 270 1234.

Overlay and Numbering Considerations

As of the latest updates, area code 54 does not have an overlay code; it remains a distinct geographic code. However, subscribers within the region may have the option to use VoIP services that provide non-geographic numbers, but those are not part of the 54 code. The number length for local subscriber numbers is 8 digits, making the total length of a national significant number (NSN) 10 digits (including the area code but excluding the trunk prefix).

Caller Instructions

Local callers within the 54 area should dial the 8-digit number directly. Domestic long-distance callers from other South Korean area codes must include the trunk prefix 0 and the area code 54. International callers must use the +82 country code, followed by 54 and the subscriber number, omitting the leading 0. Always verify the subscriber number length, as some older numbers may have been migrated to 8 digits.