Telephone numbers in South Korea


Telephone numbers in South Korea are organized and assigned using the following scheme.

Overview

For example;
South Korea uses an open dialing plan with a total length of 9 to 11 digits and, within city, subscriber numbers 7 to 8 digits long. Dialing from mobile phones to any type of phone except 010 numbers, the area code must be included.
In 1998, telephone numbers in Seoul starting with 2 and 6 added more digit. Before area codes were shortened from 4 digit to 2~3 digit in June 2000, there were 1 digit exchange number with some 2 digit exchange numbers so some phone numbers like 0347-61-XXXX, 0443-2-XXXX or 0525-40-XXXX existed.

Full list

International call carrier codes

Before June 2000, South Korea used two- to four-digit area codes.
It is not necessary to dial any carrier prefix before making a domestic long-distance call.
These prefixes are needed only when you want to choose a different carrier other than your default long-distance carrier.