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International dialing

How to call South Korea from United States

  • Exit code 011
  • Country code +82
  • Drop the leading 0

Reviewed by Sujan ThapaliyaLast updated

Calling South Korea from United States

Dial 011 (the United States exit code), then 82 (South Korea’s country code), then the local number with its leading 0 removed. So +82 2 1234 5678 is dialled as 011 82 2 1234 5678. From a mobile you can dial +82 directly instead of 011.
Dialling South Korea from United States: start with 011, the exit code for United States, then 82 for South Korea, then the local number with its leading 0 dropped. The diagram shows those three blocks and the leading-zero rule that catches most people out.
The + shortcut on a mobile replaces the exit code entirely, which is why it works on any SIM in any country.

The dialing sequence

Exit code from United States
011
South Korea country code
+82
Trunk prefix to remove
0
Domestic numbers start with 0; drop it from abroad.
Full sequence
011 + 82 + local number (drop the leading 0)
Time in South Korea
KST (UTC+9, no DST)
United States is on ET (UTC−5/−4).

Step by step

Dialing South Korea from United States

Four steps, and the third one is where almost every failed call goes wrong.

  1. 1

    Dial 011: the exit code for United States

    011 tells the United States network that the call is leaving the country. On a mobile you can press and hold 0 to type a + instead, which works from any country and any SIM; it is the more reliable option when you travel.
  2. 2

    Dial 82: the country code for South Korea

    82 is South Korea's country calling code. It never changes and is the same no matter where you are calling from.
  3. 3

    Drop the leading 0 from the local number

    Numbers written for domestic use in South Korea begin with 0. That digit is a national trunk prefix and is not part of the number. Remove it: +82 2 1234 5678 is dialled as 2 1234 5678 after the country code.
  4. 4

    Check the local time before you dial

    South Korea is on KST (UTC+9, no DST) and United States is on ET (UTC−5/−4). Work out the overlap before calling; the most common cause of an unanswered international business call is simply the hour.

Worked examples

What the number looks like at each stage

These are format patterns showing digit grouping, not working numbers.

Written in South KoreaDialed from United States
Landline02 1234 5678011 82 2 1234 5678
Mobile+82 10 XXXX XXXX011 82 10 1234 5678
From a mobile (+)n/a+82 10 1234 5678

One thing about South Korea

Seoul has the shortest area code in Korea, a single 2. Every Korean mobile now starts 010, so +82 10 covers essentially all of them.

Frequently asked questions

How do I call South Korea from the United States?
Dial 011, then 82, then the local number with its leading 0 removed. For example, +82 2 1234 5678 is dialled as 011 82 2 1234 5678.
What is the country code for South Korea?
+82. From United States you reach it by dialling 011 first, or by dialling + directly from a mobile.
Do I include the 0 when calling South Korea?
No. The leading 0 is only used inside South Korea. Including it from abroad is the most common reason the call fails to connect.
How do I call a South Korea mobile from United States?
Exactly the same way as a landline: 011 + 82 + the mobile number without its leading 0. A South Korea mobile in international format looks like +82 10 1234 5678.
What is the time difference between United States and South Korea?
United States is on ET (UTC−5/−4) and South Korea is on KST (UTC+9, no DST). Because several of these zones observe daylight saving on different dates, check the current offset rather than assuming a fixed gap.
Is it cheaper to call South Korea over the internet?
Usually, yes. Carrier international rates are typically far above VoIP per-minute rates, and calling from an owned local number also means the person you are calling sees a number they can ring back.

Sources

  1. ITU-T Recommendation E.164 — The international public telecommunication numbering plan — International Telecommunication UnionThe international number format, the 15-digit maximum, and how country codes and national numbers compose.
  2. ITU-T International Numbering Resources — International Telecommunication UnionThe assignment of country calling codes and the published national numbering plans they belong to.

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