---
title: "South Korea (+82) Country Calling Code & SMS Numbering Plan"
---

South Korea (+82) Country Calling Code & SMS Numbering Plan: SMSRiver

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- South Korea (+82)

National Telecom Specification

# South Korea (+82) Country Calling Code & SMS Guide

Complete engineering reference for phone numbering formats, domestic trunk prefixes, cellular mobile operator allocations, and regulatory A2P SMS requirements in South Korea.

Quick Jump:
[Numbering Plan](#numbering-plan)
[A2P Regulations](#sms-regulations)
[Verify KR Number](#inspector-cta)

Country Dialing Code
+82
ISO: KR

Domestic Trunk Prefix
0
Omitted internationally

National Length
10 digits (mobile, excluding 0)
Local subscriber digits

Full E.164 Length
12 digits (+82 10 xxxx xxxx)
With +82 prefix

## Telephony Architecture & Carrier Allocations

Destination Codes:
Geographic 02/031-064, Mobile 010

Mobile Prefix Patterns:
010 unified national mobile prefix for all cellular subscribers

Major Mobile Network Operators:
SK Telecom, KT Corporation, LG Uplus

## A2P Messaging Regulations & Firewall Policies

A2P 10DLC & Campaign Registration
Not applicable. Regulated by Korea Communications Commission (KCC) and KISA.

Alphanumeric Sender ID Support
Unsupported. Korean regulations mandate numeric caller ID pre-registered with carriers to combat voice and SMS phishing.

Two-Way Messaging Capability
Supported using Korean virtual mobile numbers.

Character Encoding Standards
UCS-2 required for Korean Hangul text (70 characters/segment). Standard GSM-7 for ASCII.

Compliance Framework: KISA Telecommunications Business Act; commercial SMS must include '(광고)' [Advertisement] prefix and free opt-out phone number.

Interactive Number Intelligence

### Test a South Korea Number Now

Check if a South Korea phone number conforms to the national numbering plan, classify mobile vs VoIP allocation, and obtain canonical E.164 standardization.

Inspect Number →

## Frequently Asked Questions for South Korea

### What is the international calling code for South Korea?

South Korea's country calling code is +82. Domestic mobile numbers start with 010, which becomes +8210 in international E.164 format.

### What is the mandatory prefix for promotional SMS in South Korea?

Under KISA anti-spam regulations, all promotional text messages must start with '(광고)' and include clear sender identification and a toll-free unsubscribe number.

### Related National Calling Codes

[Australia
+61](/country-codes/australia/)

[Austria
+43](/country-codes/austria/)

[Belgium
+32](/country-codes/belgium/)

[Brazil
+55](/country-codes/brazil/)

[Canada
+1](/country-codes/canada/)

[France
+33](/country-codes/france/)

[Germany
+49](/country-codes/germany/)

[India
+91](/country-codes/india/)

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