Korea Dialling Code: A Comprehensive Guide to Calling South Korea and North Korea from the UK and Worldwide

Understanding the Korea Dialling Code is essential for anyone making international calls to the Korean peninsula. This guide unpacks the two separate codes used for South Korea and North Korea, explains how dialling codes work, and provides practical, step-by-step instructions for callers in the UK and beyond. Whether you are contacting a business in Seoul, a friend in Pyongyang, or a government office, knowing the correct Korea Dialling Code will save time and prevent misdialled numbers.

What is the Korea Dialling Code? An Introduction to International Dialling Codes

The term “Korea Dialling Code” refers to the international country code used when placing a call to someone in Korea. In international telephony, each sovereign state is assigned a unique country calling code that appears after the international access symbol (such as + or 00). For Korea, there are two distinct codes depending on the jurisdiction you are addressing:

• South Korea: +82
• North Korea: +850

Because these two codes represent two separate countries with independent telecommunications networks, it is important to identify the correct Korea Dialling Code before placing a call. Mistaking +82 for +850, or vice versa, will route your call to a different country or fail altogether. The practice of omitting or misplacing the country code is one of the most common dialing mistakes, especially for travellers who are new to international calling.

South Korea: The Korea Dialling Code +82

South Korea uses the country code +82. When dialing domestically within South Korea, the trunk prefix 0 is used before the area code or mobile prefix. However, when calling from another country, the 0 is dropped, and the number is dialled in international format.

How South Korea Numbers Are Structured

South Korean landline numbers are grouped by area codes, followed by the local subscriber number. Area codes vary in length, with the primary city code for Seoul being 02, and other major cities using 051 (Busan), 031 (Gyeonggi Province including Suwon), 042 (Daejeon), 052 (Daegu), and so on. Mobile numbers begin with 010, 011, 016, 017, 018, or 019, although 010 is the predominant prefix today.

• Seoul and surrounding areas: 02
• Busan: 051
• Incheon: 032
• Daegu: 053
• Incheon: 032
• Gwangju: 062

In international format, a sample number for Seoul might appear as +82 2 xxxx xxxx, while a Busan landline might be +82 51 xxx xxxx. For mobile numbers, you would see +82 10 xxxx xxxx or another mobile prefix in place of the area code.

Dialling South Korea from the United Kingdom (UK)

When calling South Korea from the UK, you’ll use the international access code 00 or the plus sign +, followed by the Korea Dialling Code +82, the local area or mobile prefix, and the local number. Here are common steps:

• Dial 00 (the UK international access code) or +
• Enter 82 (the Korea Dialling Code)
• Dial the area code without the leading 0 (for Seoul, 2; for Busan, 51; for mobile, 10)
• Enter the remaining subscriber number

Examples:

• To call a Seoul landline: 00 82 2 xxxx xxxx
• To call a Busan landline: 00 82 51 xxx xxxx
• To call a mobile number: 00 82 10 xxxx xxxx

Using the plus format is often easier for international travel or contact lists: +82 2 xxxx xxxx for Seoul, +82 51 xxx xxxx for Busan, or +82 10 xxxx xxxx for mobile numbers.

Dialling South Korea from the United States

From the United States, the international access code is 011. The format mirrors the UK approach but starts with 011:

• 011 82 2 xxxx xxxx (Seoul landline)
• 011 82 51 xxx xxxx (Busan landline)
• 011 82 10 xxxx xxxx (mobile)

As with the UK, using the + symbol in your contacts is widely supported, e.g., +82 2 xxxx xxxx.

North Korea: The Korea Dialling Code +850

You may encounter the term “Korea Dialling Code” in relation to North Korea as well, where the country code is +850. North Korea’s telecommunications environment is highly controlled, with international connectivity varying by network, location, and regulatory conditions. Calling North Korea from abroad often requires coordination with the relevant telecom provider, and not all numbers are publicly accessible. If you must contact someone in North Korea, obtain the exact number through official channels or trusted organisations, and be prepared for potential restrictions or variability in call quality.

Dialling North Korea from the UK

For calls to North Korea, the international format begins with the UK’s international access code (00) or the plus sign, followed by 850 and the domestic number. Because North Korea’s numbering plan can differ by service and region, you should have the precise sequence from your recipient. A typical approach might resemble:

• 00 850 X XXX XXXX (example; exact prefixes vary by service)
• +850 X XXX XXXX

Note that many North Korean numbers are listed in business directories or official government channels, and direct dialling may not always be possible for private individuals. Always verify the number and access requirements ahead of time.

Understanding the Anatomy of an International Dialing Sequence

To make sense of “korea dialling code” in practice, it helps to break down the components of an international call:

• International access code: The prefix used to initiate an international call (00 in many countries, 011 in the US, and + as a universal symbol when using mobile phones).
• Country code: The Korea Dialling Code (+82 for South Korea, +850 for North Korea).
• Area or city code: The local region’s identifier within the country. In South Korea, these codes specify Seoul, Busan, and other regions and are typically dialled without the leading 0 in international format.
• Local number: The subscriber’s individual phone number.

By combining these elements correctly, you ensure your call is routed to the intended recipient. A small error in the sequence can lead to a wrong country, a disconnected call, or a failed connection.

Practical Tips for Calling Korea: From the UK and Worldwide

Always Use the Correct Korea Dialling Code

Double-check whether you are contacting South Korea or North Korea. The Korea Dialling Code for South Korea is +82, while the one for North Korea is +850. Mixing them up is a frequent mistake and can result in an international routing error.

Drop the 0 When Dialling Internationally

When using the international format, omit the leading 0 that is used for domestic dialling. For example, Seoul is 02 in Korea’s domestic system, but when dialling from abroad you would use 2 after the country code: +82 2 xxxx xxxx.

Choose the Right Number Type: Landline vs Mobile

South Korea has a robust mobile network. If you are calling a mobile number, you will typically use a mobile prefix such as 010 after the country code. For landlines, the area code (like 2 for Seoul) is used. Confirm with the person you are calling whether you will reach a landline or a mobile.

Be Aware of Time Zones and Working Hours

South Korea operates on Korea Standard Time (KST), which is UTC+9 year-round. North Korea also uses a time standard aligned with its own government policies. If you are calling from the UK or elsewhere, check time differences to avoid early morning or late-night calls, particularly for business communications.

Use the Plus Sign for Easy International Dialling

If your phone supports it, the plus sign (+) is the most convenient way to dial internationally. The device automatically substitutes the correct international access code for your location. For example, dialing +82 2 xxxx xxxx will work on many international mobile networks with the correct settings.

Consider Alternatives: International Calling Cards and VoIP

In some scenarios, international calling cards or VoIP services can offer cost savings or more reliable connections, especially if you’re dealing with North Korea where direct landline access can be variable. Ensure your chosen service supports the Korea Dialling Code you need and test the connection in advance.

Common Scenarios: Examples for Everyday Use

Calling a Seoul Business from the UK

Suppose you want to reach a Seoul-based company. The number might be structured as a landline with the 02 area code. The international format would be:

• +82 2 xxxx xxxx

If you’re dialling in the UK, you would dial 00 82 2 xxxx xxxx (or simply use +82 2 xxxx xxxx if your device supports it).

Text and Voice: Mobile Numbers in Korea

For a Korean mobile number, the format typically uses the 010 prefix after the country code. Example:

• +82 10 xxxx xxxx
• UK: 00 82 10 xxxx xxxx

Mobile numbers are useful for both voice calls and text messages. If the person you’re contacting has a virtual number or in-country SIM, you may experience different call quality, depending on network coverage.

Calling North Korea for Official Matters

When contacting government offices or approved institutions in North Korea, it’s essential to obtain the correct public number from an official source. The dialling sequence will begin with +850, followed by the appropriate local or service number, but direct availability can vary widely by location and current regulatory conditions.

Key Takeaways: Korea Dialling Code and How to Use It

In summary, the Korea Dialling Code you need depends on the target country within the peninsula. For South Korea, the correct code is +82, and for North Korea, it is +850. Remember to drop the domestic 0 when dialling internationally, and use the appropriate area or mobile prefix to reach the intended recipient. Whether you’re placing a call from the UK or any other country, the basics remain the same: international access code, country code, area/mobile code, and the subscriber number.

Frequently Asked Questions About the Korea Dialling Code

Is the Korea Dialling Code the same for all numbers in South Korea?

No. South Korea uses +82, but the subsequent digits differ depending on whether you are calling a landline or a mobile number, and which city or region you are trying to reach. The area codes are essential to route the call correctly.

Can I dial North Korea directly from the UK?

Direct dialling to North Korea can be challenging due to regulatory and connectivity limitations. If you must reach a North Korean number, check with your telecommunications provider for supported routes and confirm the exact international format with the recipient.

What happens if I dial the wrong Korea Dialling Code?

Dialling +82 when the recipient is in North Korea, or +850 when the recipient is in South Korea, will typically fail to connect or route the call to a different destination. Always verify the intended recipient’s country first to ensure you use the correct Korea Dialling Code.

Additional Resources and Practical Aids

For those who prefer quick references, many travel guides, corporate contact directories, and smartphone address books store international numbers in E.164 format (which uses the + sign and international country codes). This format makes it easier to organise contacts for both South Korea and North Korea under the umbrella of the Korea Dialling Code.

Summary of the Korea Dialling Code Landscape

• South Korea: +82
• North Korea: +850
• Domestic format in South Korea relies on a 0 prefix for area codes and mobile prefixes; international format omits the 0
• Major South Korean cities use area codes such as 02 (Seoul) and 051 (Busan); mobiles use 010 and other prefixes
• Time zones and connectivity can affect call quality, particularly to North Korea

Final Thoughts on the Korea Dialling Code

The Korea Dialling Code is a small but critical piece of international communication infrastructure. By understanding the distinct codes for South Korea and North Korea, and by following best practices for international dialing, you can connect with colleagues, friends, and officials with greater speed and fewer disruptions. Remember that accuracy in the country code, the correct trunk symbol (when necessary), and the appropriate area or mobile prefix are your best allies when navigating the Korea Dialling Code landscape.