Telephone numbers in South Korea


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

Overview

  • International call out: 00N followed by the distant country code and telephone number.
  • Calling into Korea: +82 XX XXXX YYYY. The leading "0" is dropped when dialling into South Korea from abroad.
  • Some 1566/1577/1588 telephone numbers cannot be dialed from abroad.
  • Domestic long-distance call: 0NN followed by the 0XX area code and XXXX YYYY number. See [|Domestic long-distance service code] and [|Area code].
  • Call to cellular : 01N XXXX YYYY. When phone call is made between unified 010-number subscribers, leading 010 can be dropped.
  • [|Special service] call : 0N0 XXXX YYYY
For example;
  • Call 02-312-3456 within Seoul: 312-3456
  • Call 02-312-3456 from elsewhere: 02-312-3456
  • Call 051-212-3456 within Busan: 212-3456
  • Call 051-212-3456 from elsewhere: 051-212-3456
  • Call 02-312-3456 from abroad: +82-2-312-3456
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.

Geographic numbers

Before June 2000, South Korea used two- to four-digit area codes.

Mobile prefixes

From Jan 1, 2004, all mobile phones changed to 010.
  • 010 - Mobile
  • 0100 - Satellite phone
  • 011 - Mobile, until Dec 31, 2003
  • 012 - Machine to machine
  • 013x - Mobile special net
  • 014xx - Point-to-Point Protocol Access number
  • 015 - Mobile services: Paging services
  • 016 - Mobile until Jun 30, 2003
  • 017 - Mobile, until Dec 31, 2003
  • 018 - Mobile, until Jun 30, 2003
  • 019 - Mobile

    Services

  • 030 - UMS
  • 050 - Personal number service
  • 050x - Anonymous virtual number service
  • 060 - Telephone based intelligent service
  • 070 - Internet phone
  • 080 - Toll-free call

    Domestic long-distance carrier 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.
  • 081 - KT
  • 082 - LG U+
  • 083 - Sejong Telecom
  • 084 - SK Broadband
  • 085xx -
  • 086 - SK Telink
  • 087 -
  • 088 -

    Collect call

  • 082-17,1677 - uplus Collect call
  • 1541 - KT Collect call
  • 1677 - Sejong Telecom Collect call
  • 1682 - SK Telink Collect call

    Intelligent Network

  • 14XXXX
  • *14XX-XX - KT nationwide single number toll-free service
  • 15XXXXXX
  • *1544-XXXX - LG Dacom nationwide single number service
  • *1566-XXXX - SK Broadband nationwide single number service
  • *1577-XXXX - KT nationwide single number service
  • *1588-XXXX - KT nationwide single number service
  • *1599-XXXX - SK Telink nationwide single number service
  • 16XXXXXX
  • *1661-XXXX - LG U+ nationwide single number service
  • *1688-XXXX - Sejong Telecom nationwide single number service

    Special services numbers

  • 100 - KT customer centre
  • 101 - LG U+ Home Service customer centre
  • 106 - SK Broadband customer centre
  • 107 - Video relay service
  • 109 - Suicide Crisis hotline
  • 110 - Governmental Services Centres
  • 111 - NIS
  • 112 - Police
  • 113 - Spy reporting
  • Area Code + 114 - Directory assistance
  • 115 - KT Telegram
  • 116 - KT standard time service
  • 117 - School Violence Hotline
  • 118 - Cyber terrorism report
  • 119 - Fire brigade, Ambulance
  • 120 - Government of Seoul Service Centre
  • 121 - Water utility report
  • 122 - Coast guard emergency
  • 123 - KEPCO electric report
  • 125 - Customs
  • 126 - National Tax Services
  • 128 - Pollution report
  • 129 - Provincial Social Welfare Centre
  • 1300 - Postal services
  • 1301 - Police Narcotics report
  • Area Code + 131 - Weather forecasting
  • 132 - Civil Action
  • 1330 - KNTO tourist information
  • 1331 - Human Rights Board
  • 1332 - Finance Board
  • 1333 - Transport information
  • 1335 - Information communication service centre
  • 1336 - Infringement of personal information board
  • 1337 - Military Safety Board
  • 1338 - Communications service center and report
  • 1339 - Emergency medical treatment
  • 134 - Tourist information
  • 1345 - Korea Immigration Service
  • 1350 - Labour Board
  • 1355 - National Pension Service
  • 1357 - Small and medium enterprise support
  • 1365 - Volunteering information
  • 1366 - Domestic abuse report
  • 1369 - Financial Information Inquiry
  • 1377 - Foodbank
  • 1379 - Unreasonable infringement of livelihood report
  • 1382 - Citizen Registry Confirmation
  • 1385 - Business discomfort report and board
  • 1388 - Minor mistreatment report
  • 1389 - Elderly abuse hotline and board
  • 1390 - Election information and infringement hotline
  • 1391 - Baby abuse hotline
  • 1398 - Child abuse hotline
  • 1399 - Unclean grocery report
  • 141 - Contact room
  • 182 - Missing child report hotline
  • 188 - National Board of Audit and Inspection

    International Access

  • 001 - KT international call
  • 002 - LG U+ international call
  • 003xx - International call over Internet Protocol or international special services
  • *00365 - Sejong Telecom international call over Internet Protocol
  • 005 - SK Broadband international call
  • 006 - SK Telink international call
  • 007xx - International call over Internet Protocol or international special services
  • *00700 - SK Telink international call over Internet Protocol
  • *00727 - KT international call over Internet Protocol
  • *00766 - SK Broadband international call over Internet Protocol
  • *00794 - Operator Service
  • 008 - Sejong Telecom international call