🇰🇷USA to South Korea Guide

Call South Korea
Code is +82

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How to Dial
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How to Call South Korea from USA

Follow this simple sequence to connect to any number in South Korea.

1

US Exit Code

Dial 011. This allows you to dial out of the United States.
(On mobile/VoIP, just hold 0 to get +)

2

Korea Code (+82)

Dial 82. This routes the call to South Korea.

3

Area Code & Number

Dial the city code and number.
Important: Drop the leading zero!

The "Drop the Zero" Rule

In South Korea, area codes start with '0' (e.g., 02 for Seoul). When calling from the USA, you must omit this zero.

Landline (Seoul)
011 82 02 1234 5678
Mobile
011 82 010 1234 5678

Major South Korean City Codes

Remember to drop the leading '0' when dialing these from the USA.

CityRegionDial Code
SeoulCapital Area2
BusanYeongnam51
IncheonCapital Area32
DaeguYeongnam53
DaejeonHoseo42
CityRegionDial Code
GwangjuHonam62
UlsanYeongnam52
SejongHoseo44
Gyeonggi-doCapital Area31
JejuJeju Island64

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Call Korea?

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  • Competitive rates for your destination to South Korea
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Compared to standard US carrier international rates.

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Frequently Asked Questions

What is the country code for South Korea?

The country code is +82. From the USA, you dial 011 82, then the number.

Do I dial the zero in the area code?

No. South Korean area codes start with 0 (e.g., 02 for Seoul), but you must drop this zero when calling from the USA. Dial 011 82 2...

How do I call a Korean mobile phone?

Korean mobile numbers usually start with 010. Drop the leading zero and dial 011 82 10 followed by the 8-digit number.

What is the time difference?

South Korea is typically 13-16 hours ahead of the USA, depending on your time zone and daylight savings.

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Country deep dive

From United States to South Korea

Practical reference covering the destination country's dial code, time zone, mobile carriers, city area codes, business etiquette, and any regulatory rules that affect inbound calls. The information below is specific to this route — different country pairs surface different operational details.

Calling South Korea (+82)

South Korea sits in KST (UTC+9) — no daylight saving.. The country dial code is +82 and the official language for business is Korean. Local business hours run roughly 9:00–18:00 with strict 52-hour weekly cap; overtime culture has officially eased since 2018 reform..

Major cities & area codes

  • Daegu · 053
  • Seoul · 02
  • Busan · 051
  • Incheon · 032

Mobile carriers in South Korea

  • LG U+ · 010 mobiles
  • SK Telecom · 010 mobiles
  • KT (Olleh) · 010 mobiles

What to know when calling South Korea

  • Mobile numbers are all 010-xxxx-xxxx since 2014 (previously 011, 016, 017, 018, 019 by carrier — those have been phased out).
  • KakaoTalk is the dominant messaging app — many Korean businesses default to KakaoTalk Voice over carrier-billed voice.

Calling from United States

From United States (Five time zones from Eastern (UTC−5) to Hawaii–Aleutian (UTC−10); most business activity sits in Eastern and Pacific.) the local business window is Standard hours 9:00–17:00 in each local time zone. Federal offices skew earlier; West-Coast tech routinely runs to 19:00. Banks close 17:00 sharp.. Most outbound callers reach a live answer most easily mid-morning local time, before lunch, and again in the late afternoon.

  • Cold-call regulations vary by state — California, Florida and New York have stricter pre-recorded-message rules under their consumer protection acts.
  • Caller ID display name (CNAM) is honored by most major US carriers; a recognizable display name materially improves answer rates.
Operational facts above are sourced from regulator publications and carrier disclosures; specific rates and routing are confirmed in the live dialer.
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