How to Call South Korea From Abroad (Expat Guide 2026)

Your Shinhan Bank app just locked you out. The screen says to call their international support line. You’re sitting in a cafe in Lisbon, it’s 2 PM your time, and you need to figure out if the Seoul office is even open right now. Oh, and you have no idea how Korean phone numbers work.

If you need to call South Korea from abroad — whether it’s a bank, HIKOREA immigration, a hospital, or your family — this guide covers everything. Country codes, area codes, mobile prefixes, the cheapest methods, time zones, and how to deal with the language barrier.

South Korea Country Code and Number Format

South Korea’s country code is +82. Every international call to Korea starts with this.

Korean phone numbers follow a consistent pattern, but there are a few quirks worth knowing.

Landline Numbers

Korean landlines use area codes. The most important ones:

Area Code	City / Region
02	Seoul
031	Gyeonggi Province (Suwon, Seongnam)
032	Incheon
033	Gangwon Province
042	Daejeon
051	Busan
053	Daegu
062	Gwangju
064	Jeju Island

Seoul is the odd one out. It uses a two-digit area code (02) while most other regions use three digits.

How to dial a Seoul landline from abroad:

1. Dial your international access code (or just use +)
2. Add 82 (South Korea country code)
3. Drop the leading 0 from the area code
4. Dial the local number

Example: A Seoul number like (02) 1234-5678 becomes +82 2 1234 5678 when dialing from outside Korea. Notice the leading zero disappears.

Mobile Numbers

Almost every Korean mobile number starts with 010. Older numbers might use 011, 016, 017, 018, or 019, but 010 dominates.

A Korean mobile number looks like: 010-1234-5678

To dial from abroad: +82 10 1234 5678

Again, drop the leading zero. The 010 becomes 10 after the country code.

Special and Toll-Free Numbers

Korea has special service numbers that can trip you up:

• 1330 — Korea Tourism Hotline (multilingual). From abroad: +82 2 1330
• 1345 — Immigration Contact Center. From abroad: +82 2 1345
• 120 — Seoul Metropolitan Government call center
• 1588-xxxx / 1566-xxxx / 1577-xxxx — Corporate service numbers

Those four-digit numbers (like 1330 and 1345) need a Seoul area code prefix when calling internationally. So 1345 becomes +82 2 1345.

The 1588/1566/1577 corporate numbers are trickier. Many of them don’t accept international calls at all. If you’re trying to reach KB Kookmin Bank or Samsung customer service through one of these numbers, you may need to find their direct international line instead.

Key Numbers Expats Actually Need

Here are the numbers you’re most likely searching for:

Immigration (HIKOREA)

• From Korea: 1345
• From abroad: +82 2 1345
• Multilingual support available (English, Chinese, Vietnamese, and more)
• Hours: Monday to Friday, 9 AM - 6 PM KST

Banks

Shinhan Bank International:

• From abroad: +82 2 3449-8000 (main line)
• English support available during business hours

KB Kookmin Bank:

• From abroad: +82 2 2073-7100
• The 1588-9999 domestic number often won’t connect from outside Korea

Hana Bank:

• From abroad: +82 2 2002-1111

Woori Bank:

• From abroad: +82 2 2006-5000

Pro tip: Korean banks typically have English-speaking staff during business hours. Ask for the “English service” or “oegug-eo seobiseu” (외국어 서비스). Some banks have a dedicated English line — press the option for foreign language when prompted.

Emergency and Government

• Police: +82 2 112 (from abroad, add Seoul prefix)
• Fire/Ambulance: +82 2 119
• Korea Tourism Hotline: +82 2 1330 (English available 24/7)

Methods to Call South Korea From Abroad

You have several options. Each comes with different trade-offs on cost, convenience, and reliability.

1. Carrier Roaming

Your existing phone plan might let you dial Korean numbers directly. The catch? The cost.

• AT&T International Day Pass: $10/day, includes calls to Korea
• T-Mobile Magenta: $0.25/min to South Korea from many countries
• Verizon TravelPass: $10/day
• EE (UK): Typically around 1-2 GBP/min

Roaming works without any setup. You just dial. But those per-minute rates add up fast, especially if you’re calling a Korean bank and sitting on hold.

2. Browser-Based VoIP (Like NomaPhone)

Browser-based calling lets you dial Korean landlines and mobiles from any device with internet. No app download required. You open a browser, enter the number, and call.

NomaPhone is built for exactly this kind of call — the urgent bank call, the immigration office, the “I need to reach someone in Korea right now” moment. Pay-as-you-go credits, no subscription, and credits that never expire.

Other browser-based options exist too. DialAnyone offers coverage to 210+ countries and includes mobile apps alongside browser calling. YadaPhone provides browser-based calling to 150+ countries.

3. App-Based VoIP

Apps like Viber Out and Skype (now part of Microsoft Teams) let you call Korean numbers. You’ll need to install the app first and buy credits.

• Viber Out: Credit-based, rates vary
• Microsoft Teams (formerly Skype): Credit-based international calling still available

These work, but they require app installation and account setup. Not ideal when you need to make a call in the next five minutes.

4. KakaoTalk (Free, but Limited)

KakaoTalk is Korea’s dominant messaging app. If you’re calling someone who has KakaoTalk, you can voice call them for free over the internet.

The limitation: this only works for person-to-person calls. You can’t KakaoTalk a bank or a government office. And both sides need the app installed.

5. Calling Cards

Old-school but still functional. International calling cards work from any phone. You dial an access number, enter a PIN, then dial the Korean number.

Downsides: hidden fees, connection charges, and generally poor audio quality. They’re a last resort in 2026.

Cost Comparison: Calling South Korea for 30 Minutes

Here’s what a 30-minute call to a Korean landline actually costs with each method:

Method	Est. Cost (30 min)	Pros	Cons
AT&T roaming	$10/day pass or $60-90 per-min	No setup needed	Expensive without a day pass
T-Mobile Magenta	$7.50	Included in plan	Only from T-Mobile covered countries
Browser VoIP (NomaPhone)	Check current rates	No app, works anywhere, pay-as-you-go	Needs internet connection
Browser VoIP (DialAnyone)	Varies	App + browser, 210+ countries	Rates vary by destination
Viber Out	Varies	Large user base in Asia	Requires app install
KakaoTalk	Free	No cost at all	Only for personal contacts with the app
Calling card	$3-12	Works without internet	Hidden fees, poor quality

Note on NomaPhone rates: South Korea rates are available on the NomaPhone website. The per-minute cost follows the same transparent, pay-as-you-go model — no connection fees, no monthly minimums, and credits never expire. For the most current rate, check the pricing page directly.

Time Zone: When to Call South Korea

South Korea uses Korea Standard Time (KST), which is UTC+9. Korea does not observe daylight saving time, so the offset stays the same year-round.

That “no daylight saving” part is actually helpful. The time difference between you and Seoul stays consistent regardless of season.

KST Conversion for Common Expat Locations

Your Location	Time Difference From KST	When It’s 10 AM in Seoul
New York (EDT)	KST is 13 hours ahead	9 PM previous day in New York
Los Angeles (PDT)	KST is 16 hours ahead	6 PM previous day in LA
London (BST)	KST is 8 hours ahead	2 AM in London
Berlin (CEST)	KST is 7 hours ahead	3 AM in Berlin
Dubai	KST is 5 hours ahead	5 AM in Dubai
Bangkok	KST is 2 hours ahead	8 AM in Bangkok
Tokyo	Same time zone (JST = KST)	10 AM in Tokyo
Sydney (AEST)	KST is 1 hour behind	11 AM in Sydney

Best Times to Call Korean Offices

Korean business hours are typically 9 AM to 6 PM KST, Monday through Friday.

If you’re in Europe, you’re looking at very early morning calls. If you’re in the Americas, late evening the day before.

Banks and government offices are closed on Korean public holidays. Major ones to watch: Lunar New Year (late January/February), Chuseok (September/October), and Liberation Day (August 15).

Dealing With the Language Barrier

Korean phone systems can be challenging if you don’t speak Korean. Here’s how to navigate them.

Automated Phone Menus (IVR)

Most Korean banks and government offices have automated menus in Korean first. Listen for these phrases:

• “Yeong-eo seobiseu-neun” (영어 서비스는) — This means English service is coming. Wait for the prompt or press the indicated number.
• Many systems say “For English, press [number]” after the Korean options. Be patient.

Useful Korean Phrases for Phone Calls

You don’t need to be fluent. These phrases can get you transferred to someone who speaks English:

• “Yeong-eo haseyo?” (영어 하세요?) — “Do you speak English?”
• “Yeong-eo seobiseu butakdeurimnida” (영어 서비스 부탁드립니다) — “English service, please”
• “Oe-guk-in imnida” (외국인 입니다) — “I am a foreigner”

Services That Offer English Support

Good news: several Korean institutions have dedicated English lines.

• HIKOREA (1345): Press 2 for English after the Korean menu
• Korea Tourism (1330): English available 24/7
• Major banks: English support during business hours, usually 9 AM - 4 PM KST
• BBB Korea (1588-5644): Free volunteer interpretation service covering 19 languages

BBB Korea is a hidden gem. It’s a volunteer-run phone interpretation service. You call them, tell them what you need, and they’ll either interpret for you on a three-way call or give you guidance. It’s free.

VoIP and Internet Calling Restrictions in South Korea

South Korea has some of the fastest internet in the world. But there are a few things to know about VoIP calling from and to Korea.

Calling Into Korea (You’re Abroad, Calling Korean Numbers)

No restrictions. You can call any Korean landline or mobile from any VoIP service, browser-based calling platform, or app. The call routes through Korean telecom infrastructure normally.

Calling From Korea (You’re in Korea, Calling Abroad)

This is where it gets interesting. South Korea has historically had restrictions on VoIP services. While the market has opened up significantly, some VoIP services may experience blocks or quality issues on certain Korean networks.

If you’re in Korea trying to call abroad:

• Wi-Fi calling: Generally works fine on hotel and cafe networks
• Mobile data: Some carriers may throttle or block certain VoIP protocols
• Workaround: Use a reliable browser-based service over Wi-Fi rather than mobile data

Most expats in Korea report that browser-based VoIP services work without issues on home internet (KT, SK Broadband, LG U+) and most Wi-Fi networks.

Step-by-Step: Making Your First Call to South Korea

Here’s the quickest path from “I need to call Korea” to actually being on the phone.

Step 1: Get the Number Right

Take the Korean number and convert it:

• Landline (02) 1234-5678 becomes +82 2 1234 5678
• Mobile 010-1234-5678 becomes +82 10 1234 5678
• Service number 1345 becomes +82 2 1345

Drop the leading zero. Always.

Step 2: Check the Time

Is it between 9 AM and 6 PM KST? If you’re calling a business, it needs to be. Use a world clock or just search “time in Seoul” on your phone.

Step 3: Choose Your Method

• Need to call right now? Browser-based VoIP. No download, no setup. Open, dial, talk.
• Calling a friend with KakaoTalk? Use that. It’s free.
• Have a good roaming plan? Dial directly from your phone.

Step 4: Prepare for the Language Menu

If calling a bank or government office, be ready to wait through Korean menu options. Have your account numbers or reference numbers ready. Write down what you need before calling so you can communicate clearly when you reach an English speaker.

Quick Reference: South Korea Calling Cheat Sheet

Detail	Info
Country code	+82
Seoul area code	02 (dial as 2 from abroad)
Mobile prefix	010 (dial as 10 from abroad)
Emergency (police)	112
Immigration	+82 2 1345
Time zone	KST (UTC+9, no daylight saving)
Business hours	9 AM - 6 PM KST, Mon-Fri
Dominant messenger	KakaoTalk
Currency	Korean Won (KRW)

Frequently Asked Questions

Can I call Korean 1588 numbers from abroad?

Usually not. These are domestic service numbers and most don’t accept international calls. Look for the company’s direct international number on their English website, or try searching for their +82 2 direct line.

Is WhatsApp common in South Korea?

Not really. South Korea runs on KakaoTalk. Nearly everyone in Korea uses it. If you want to message or free-call someone in Korea, install KakaoTalk rather than relying on WhatsApp.

Do I need to dial 00 before +82?

If you’re dialing from a traditional phone, you may need your country’s international access code (00 in most countries, 011 from the US on a landline). If you’re using a mobile phone or VoIP service, just use the + symbol followed by 82.

Can I text Korean mobile numbers from abroad?

Yes, international SMS works to Korean mobile numbers. But it’s expensive through carriers (often $0.50 or more per message). KakaoTalk messaging is free if the recipient uses it.

What if the Korean office I’m calling doesn’t have English support?

Try BBB Korea at +82 2 1588 5644. Their volunteers can interpret for you. Alternatively, Papago (Korea’s version of Google Translate) has a conversation mode that works surprisingly well for simple interactions — though obviously not ideal over the phone.

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NomaPhone makes calling South Korea straightforward. Open your browser, dial the Korean number, and connect. No app to install, no contract to sign. Pay-as-you-go credits that never expire. Whether you’re calling Shinhan Bank about a frozen card or checking in with family in Seoul, it works from anywhere you have internet. Visit NomaPhone to see current rates and get started.