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+82

South Korea phone numbers

010-2000-0000

International +82 10-2000-0000, E.164 +821020000000

The numbering plan of South Korea: formats, lengths, the regular expression for each line type and the prefix blocks allocated to each carrier, as ITU publishes it. A pattern says what a number looks like and where it was allocated; whether it is in service, and who serves it today, is a different question (below).

At a glance

Country code
+82
Exit code
—
Trunk prefix
0
Mobile digits
9 or 10
Fixed-line digits
5 or 6 or 8 or 9 or 10
Number portability
yes
Carriers on record
3

How to dial a number in South Korea from anywhere: the dialling helper.

Mobile numbers start with:010011012016017018019
Mobile prefix blocks by operator
SKTellink
34
KT
28
LG U+
19

prefix blocks allocated, from the published records; a block is a prefix at the plan's allocation length

Check a number

Valid mobile number in South Korea.

+82
country code
10
network code
20000000
subscriber number
CountrySouth Korea numbering plan
Line typeMobile
Carrier the block was allocated toSKTellink
E.164+821020000000
International+82 10-2000-0000
National010-2000-0000
RFC 3966tel:+82-10-2000-0000

Source: National numbering plan: Korea (Rep. of) (ITU)

Test a pattern

Tick the line types you accept, copy the combined pattern, and paste numbers to see which range each one falls in. Numbers are reduced to their national digits first (no spaces, no +82, no trunk prefix 0); nothing leaves your browser.

Line types to accept
^(?:1(?:05(?:[0-8]\d|9[0-6])|22[13]\d)\d{4,5}|1(?:0[0-46-9]|[16-9]\d|2[013-9])\d{6,7}|(?:2|3[1-3]|[46][1-4]|5[1-5])[1-9]\d{6,7}|(?:3[1-3]|[46][1-4]|5[1-5])1\d{2,3})$
NumberNational digitsMatches
010-2000-00001020000000Mobile
02-212-345622123456Fixed line
080-123-4567801234567not in the ticked types
070-1234-56787012345678not in the ticked types

Need another country, or the pattern as code in your language? Open the regex builder.

Walk the prefixes

Type the first digits of a number in national form, or tap them: the operators holding blocks under those digits, then the block a full prefix falls in. 81 blocks held by 3 operators are on record.

Type the first digits of a number in national form.

In full

Cheat sheet

Country code+82
International exit code (dialling out)— (the plan also allows 00(?:[125689]|3(?:[46]5|91)|7(?:00|27|3|55|6[126])))
Trunk prefix (national dialling)0
Mobile number length (national digits)9 or 10
Fixed-line number length (national digits)5 or 6 or 8 or 9 or 10 (3 or 4 or 7 dialled locally)
E.164 example+821020000000
RFC 3966 (tel: URI)tel:+82-10-2000-0000
Mobile number portabilityYes

Line types and their regular expressions

Match each pattern against the national significant number: digits only, without the trunk prefix 0 and without +82. The patterns follow the national numbering plan and are anchored here.

Line typeNational digitsExample, nationalExample, E.164
Mobile9 or 10010-2000-0000+821020000000
Fixed line5 or 6 or 8 or 9 or 1002-212-3456+8222123456
Toll-free9 or 11 or 12 or 13 or 14080-123-4567+82801234567
VoIP10070-1234-5678+827012345678
Premium-rate9060-234-5678+82602345678
Personal number10 or 11050-1234-5678+825012345678
Pager9 or 10015-2345-6789+821523456789
UAN81544-1234+8215441234

Mobile, 9 or 10 digits

^(?:1(?:05(?:[0-8]\d|9[0-6])|22[13]\d)\d{4,5}|1(?:0[0-46-9]|[16-9]\d|2[013-9])\d{6,7})$

Fixed line, 5 or 6 or 8 or 9 or 10 digits

^(?:(?:2|3[1-3]|[46][1-4]|5[1-5])[1-9]\d{6,7}|(?:3[1-3]|[46][1-4]|5[1-5])1\d{2,3})$

Toll-free, 9 or 11 or 12 or 13 or 14 digits

^(?:00(?:308\d{6,7}|798\d{7,9})|(?:00368|[38]0)\d{7})$

VoIP, 10 digits

^(?:70\d{8})$

Premium-rate, 9 digits

^(?:60[2-9]\d{6})$

Personal number, 10 or 11 digits

^(?:50\d{8,9})$

Pager, 9 or 10 digits

^(?:15\d{7,8})$

UAN, 8 digits

^(?:1(?:5(?:22|33|44|66|77|88|99)|6(?:[07]0|44|6[0168]|88)|8(?:00|33|55|77|99))\d{4})$

Carrier prefix blocks

The operator each prefix block was allocated to, in national form, from the published allocation records for +82. Numbers are portable, so this is the original allocation, not necessarily the carrier serving a number today.

OperatorLine typePrefix blocksRanges
SKTellinkMobile34011, 017, 0104, 01020–01021, 01031, 01035–01038, 01050, 01052–01054, 01062–01064, 01071, 01085–01094, 010590–010595
KTMobile28016, 018, 0122, 01025–01030, 01032–01034, 01042–01044, 01051, 01065–01068, 01072–01074, 01095–01099
LG U+Mobile19019, 0100, 01022–01024, 01039, 01055–01058, 01075–01077, 01079–01084

Questions developers ask

How many digits does a phone number in South Korea have?
Mobile numbers have 9 or 10 national digits. Fixed line numbers have 5 or 6 or 8 or 9 or 10 national digits (3 or 4 or 7 when dialled locally). That is the national number, without the country code +82 and without the trunk prefix 0.
What is the country code for South Korea?
+82. From abroad, dial your own exit code, then 82, then the national number without its trunk prefix 0.
Which prefixes are mobile numbers in South Korea?
Mobile numbers start with 010, 011, 012, 016, 017, 018 or 019 in national form; the mobile regular expression on this page gives the exact ranges (example: 010-2000-0000). The carrier table shows which prefix blocks were allocated to which operator.
Can a mobile number in South Korea be ported to another carrier?
Yes. South Korea has mobile number portability, so a prefix tells you the carrier a number was originally allocated to, not necessarily the one serving it today. Only a live carrier lookup (an HLR or MNP query) answers that.