South Korea Phone Numbers: Format, Area Code & Validation Guide - phone-number-standards -

Frequently Asked Questions

The country code for South Korea is +82. This code is required when dialing a South Korean number from another country, ensuring the call is routed correctly through international telecommunications networks.
South Korean landline numbers follow the format 0[2-6][0-9]{1,2}-[0-9]{3,4}-[0-9]{4}, where the digits after the initial '0' represent the area code. Area code length varies by region; Seoul, for example, uses the short code '02'.
Use a regular expression like /^(?:\+82|0)?10(?:-|\s)?[0-9]{4}(?:-|\s)?[0-9]{4}$/ to validate South Korean mobile numbers. This accounts for variations in formatting like spaces, hyphens and presence or absence of national prefix ('0') or country code (+82).
South Korean toll-free numbers use the format 080-[0-9]{3,4}-[0-9]{4}. These numbers are designed to avoid charges for the caller and require specific routing configurations.
All South Korean mobile carriers use the 010 prefix. This standardized prefix simplifies mobile number identification and routing across different networks within the country.
The +82 country code is necessary when making international calls to South Korea. For domestic calls within South Korea, the country code is not used; instead, use the national prefix '0'.
South Korea's telecommunications market is dominated by three major operators: SK Telecom, KT, and LG U+. These companies provide a range of services including mobile, fixed-line, and internet access.
South Korea's number portability system allows customers to switch carriers while keeping their existing phone number. The process is managed by the Ministry of Science and ICT (MSIT) and typically takes about one business day.
The Ministry of Science and ICT (MSIT) regulates South Korea's telecommunications sector. It oversees licensing, service quality, consumer protection, number portability, and promotes innovation and infrastructure development, such as the 5G rollout.
Premium-rate numbers in South Korea follow the format 060-[2-9][0-9]{6}. These numbers are often used for value-added services and typically incur higher charges for the caller.
Yes, using an established library for phone number validation is recommended. This simplifies implementation, ensures accuracy, and handles edge cases, including variations in formatting and international number formats.
South Korea's future telecommunications landscape focuses on smart city development and digital transformation. Key initiatives include integrating IoT networks, AI-powered infrastructure management, and implementing cloud-native network architectures.
South Korean emergency numbers, such as 119 (Fire/Medical) and 112 (Police), follow the format 1[0-9]{2} and should be dialed directly. These numbers require priority routing and bypass validation checks.
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