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Telephone numbers in South Korea are organized and assigned using the following scheme
Overview
International call out: 00N (where N is the carrier code) 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 (where NN is the carrier code) 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 (see
Mobile phone number ). When phone call is made between unified 010-number subscribers, leading 010 can be dropped (XXXX YYYY).
Special service call : 0N0 XXXX YYYY (see
Special service )
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 (including 0) 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 (02-2XX-YYYY to 02-22XX-YYYY, 02-6XX-YYYY to 02-26XX-YYYY). Before area codes were shortened from 4 digit to 2~3 digit in June 2000, there were 1 digit exchange number (usually "2") with some 2 digit exchange numbers so some phone numbers like 0347-61-XXXX, 0443-2-XXXX or 0525-40-XXXX existed. (now 031-761-XXXX, 043-652-XXXX and 055-340-XXXX)
Full list
International call carrier codes
001 -
KT international call
002 -
LG U+ international call
003xx - International call over Internet Protocol or international special services
005 -
SK Broadband international call (Higher quality than the 5 digit prefix service from the same company)
006 -
SK Telink international call (Higher quality than the 5 digit prefix service from the same company)
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 (Higher quality than the 5 digit prefix service from the same company)
Mobile prefixes
010 - Mobile (All South Korea Mobile Phone Companies, from Jan 1, 2004)
011 - Mobile (
SK Telecom , until Dec 31, 2003)(All South Korea Mobile Phone Companies, from Jan 1, 2004)
012 - Machine to machine (Former
Beeper )
013xx - Mobile special net (wireless vessels etc.)
014xx -
Point-to-Point Protocol Access number
015 - Mobile services: Paging services
016 - Mobile (
KT , until Jun 30, 2003)(All South Korea Mobile Phone Companies, from Jul 1, 2004)
017 - Mobile (
SK Telecom , until Dec 31, 2003)(All South Korea Mobile Phone Companies, from Jan 1, 2004)
018 - Mobile (
KT , until Jun 30, 2003)(All South Korea Mobile Phone Companies, from Jul 1, 2004)
019 - Mobile (
LG U+ , until Dec 31, 2004)(All South Korea Mobile Phone Companies, from Jan 1, 2005)
Services
030 -
UMS
050 - Personal number service
050x - Anonymous virtual number service
060 - Telephone based intelligent service (Premium-rate)
070 - Internet phone (
VoIP )
080 - Toll-free call (some aren't free from mobiles)
Area codes
Before June 2000, South Korea used two- to four-digit area codes.
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 (usually the same company that provides your phoneline).
Special numbers
100 -
KT customer center
101 -
LG U+ Home Service customer center
106 -
SK Broadband customer center
107 -
Video relay service
111 -
NIS
112 - Police
113 - Spy reporting
Area Code + 114 - Directory assistance (Korea Info Service)
115 - KT
Telegram
116 - KT standard time service
117 - School Violence Hotline (from 2012, previously: report sexual trafficking of women)
118 - Cyber terrorism report
119 - Fire brigade, ambulance
120 - Lifestyle service
121 - Water utility report
122 - Coast guard emergency
123 -
KEPCO electric report
125 - Smuggling report
127 - Narcotics report
128 - Pollution report
129 - Coordination with social welfare service (after October 2005)
1300 -
Postal services
1301 - Prosecutor service
Area Code + 131 -
Weather forecasting
132 - Civil Action (Korea Legal Aid Corporation - for contract disputes)
1330 - KNTO tourist information (bus·train schedule, hotel·inn information, free translation service)
1331 - Human Rights Board
1332 - Finance Board
1333 - Transport information
1335 - Information communication service center
1336 - Infringement of personal information board
1337 - Military Safety Board
1338 - Communications service center and report
1339 - Emergency medical treatment
134 - Tourist information
1345 - Immigration Contact Center (multilingual support)
1350 - Labor 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 (KT)
182 - Missing child report hotline
188 - National Board of Audit and Inspection
Collect call
082-17,1677 - uplus (Dacom) Collect call
1541 -
KT Collect call
1677 -
Sejong Telecom Collect call
1682 -
SK Telink Collect call
Intelligent Network
14XXXXXX
15XXXXXX
1544-XXXX - LG Dacom(LG U+) 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
See also
References