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South Korea 📱 Mobile Network

Area Code 10 – Mobile Network

The phone area code for Mobile Network is 10 (international format +8210). Browse local exchange codes (NXX) and carrier assignments below.

Current Local Time
03:37:07
UTC • UTC +00:00
Full Dialing Format
+8210
Population N/A
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Admin Region South Korea
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Elevation N/A
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GPS Coordinates N/A
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Overview of South Korea's +82 10 Mobile Prefix

The +82 10 prefix is a non-geographic mobile network code assigned to South Korea's leading mobile network operators (MNOs) and mobile virtual network operators (MVNOs). Unlike geographic area codes, which correspond to specific cities or provinces, the 10 prefix is used exclusively for mobile services, enabling subscribers to retain their numbers when moving across the country. This prefix is part of the National Destination Code (NDC) structure defined under ITU-T E.164, and it is one of several mobile codes (including 11 and 16 through 19) that support the country's advanced mobile telecommunications infrastructure.

Number Structure and Formatting

South Korean mobile numbers using the 10 prefix follow a consistent 10-digit format when dialed domestically: 010-XXXX-XXXX. Internationally, callers must replace the leading zero with the country code +82, resulting in +82 10-XXXX-XXXX. The total number length, including the country code, is 12 digits, conforming to E.164 standards. When dialing from abroad, users should omit the trunk prefix '0' and enter the number as +82 10 followed by the eight-digit subscriber number. For example, a Seoul-based mobile number might be formatted as +82 10-1234-5678.

Carrier Assignment and Portability

The 10 prefix is shared among major carriers, including SK Telecom, KT, and LG U+, as well as numerous MVNOs. This sharing is possible due to Mobile Number Portability (MNP), which allows subscribers to switch carriers while retaining their original number. As a result, the prefix does not indicate a specific operator, and routing is determined by the current network database rather than the prefix alone. This system enhances competition and consumer choice in the South Korean mobile market.

Dialing Instructions

  • Domestic calls: Dial 010-XXXX-XXXX directly from any landline or mobile phone within South Korea.
  • International calls to South Korea: Dial your country's exit code (e.g., 011 from the US, 00 from most European countries), followed by 82, then 10, and the eight-digit subscriber number. Do not include the leading '0' of the domestic format.
  • Calls from South Korea abroad: Use the international exit code 001, 002, or 00700 (depending on your carrier), followed by the destination country code and local number.

Technical Considerations

Mobile numbers under the 10 prefix support full international roaming and SMS/MMS interoperability. For VoIP or international calling services, it is essential to store numbers in E.164 format (+8210XXXXXXXX) to ensure proper routing. Additionally, when sending SMS from abroad, the same international format should be used. The 10 prefix is not subject to geographic tariffs; instead, calls are billed based on the caller's plan and the recipient's network, with no additional charges for inter-city calls within South Korea.

❓ Frequently Asked Questions

What does the +82 10 prefix mean?
The +82 10 prefix is South Korea's country code (+82) followed by the mobile network code 10. It indicates that the number belongs to a mobile subscriber, not a fixed landline. The prefix is used by all major mobile carriers and MVNOs due to number portability.
How do I dial a South Korean mobile number from the United States?
From the US, dial the international exit code 011, then South Korea's country code 82, then the mobile number without the leading zero. For example, to reach 010-1234-5678, dial 011-82-10-1234-5678.
Are all +82 10 numbers mobile?
Yes, the 10 prefix is exclusively reserved for mobile services in South Korea. It is not used for landlines or special services. However, due to number portability, the prefix does not indicate a specific carrier.
Can I keep my +82 10 number if I change carriers?
Yes, South Korea supports Mobile Number Portability (MNP), allowing you to switch between mobile operators while retaining your existing 10-prefix number. This applies to both postpaid and prepaid plans.
What is the correct international format for a South Korean mobile number?
The correct international format is +82 10 XXXX XXXX, where the leading '0' of the domestic format is omitted. For example, a domestic number 010-1234-5678 becomes +82 10-1234-5678 when dialed from abroad.