---
title: "KT: MCC 450 MNC 04"
mcc: "450"
mnc: "04"
plmn: "45004"
brand: "KT"
operator: "KT"
country: "South Korea"
country_iso: "KR"
region: "Asia & Middle East"
updated: "2025-04-09"
canonical: "https://mcc-mnc.org/networks/450_04"
---

# KT: MCC 450, MNC 04 (South Korea)

**KT** is a mobile network in [South Korea](https://mcc-mnc.org/countries/south_korea.md) (Asia & Middle East), identified by MCC **450** and MNC **04**: PLMN ID 45004, also written 450-04 or 450 04. Calling: VoLTE: Supported.

## Identifiers

| Field | Value |
|---|---|
| MCC (Mobile Country Code) | 450 |
| MNC (Mobile Network Code) | 04 |
| PLMN ID (MCC+MNC) | 45004 |
| TADIG code | — |
| Brand | KT |
| Operator | KT |
| Country | South Korea (KR) |
| Region | Asia & Middle East |
| Dialling code | — |
| Technologies | — |
| Last updated | 2025-04-09 |

## Technologies & bands

| Generation | Bands | Measured cells |
|---|---|---|
| Other | [NB-IoT](https://mcc-mnc.org/coverage/nb-iot.md) | — |

## Voice & calling services

| Service | Status | Source |
|---|---|---|
| VoLTE | Supported | Android carrier config |
| VoWiFi | Unknown | — |
| ViLTE | Unknown | — |
| VoNR | Unknown | — |

A service not marked Supported or Not supported is unknown: no data either way, not a sign that the network lacks it.

## About KT

KT Corporation, operating as KT (Korean: 케이티), is a major mobile network operator in South Korea, a vibrant hub of technological innovation within Asia. As a leading telecommunications provider, KT plays a crucial role in connecting millions of South Koreans. Officially identified by its Mobile Country Code (MCC) of 450, designating South Korea, and Mobile Network Code (MNC) of 04, KT ensures seamless mobile communication services across the nation. Competing with other significant players like SK Telecom and LG Uplus, KT constantly strives to deliver cutting-edge technology and comprehensive network coverage, supporting the country's dynamic digital landscape.

KT offers a wide array of services ranging from 4G LTE and increasingly pervasive 5G connectivity which has quickly become the standard; to fixed-line broadband, IPTV, and other telecommunications solutions. Known for its past as Korea Telecom, a government-owned entity, KT has evolved into a publicly traded company while maintaining a strong presence in South Korea's infrastructure development. The company have been instrumental in pioneering new technologies, and heavily involved and invested in South Korea's advancement as a global technology leader, continuing the rapid innovation seen in Asia and the Middle East region.

## Android carrier config highlights

| Setting | Value | Key |
|---|---|---|
| Allow emergency numbers in call log | Yes | `allow_emergency_numbers_in_call_log_bool` |
| Allow emergency video calls | Yes | `allow_emergency_video_calls_bool` |
| Support conference call | No | `support_conference_call_bool` |
| VoLTE available | Yes | `carrier_volte_available_bool` |
| Default MTU | 1450 | `default_mtu_int` |
| Enable mmsdelivery reports | No | `enableMMSDeliveryReports` |
| Enable mmsread reports | No | `enableMMSReadReports` |
| Enable smsdelivery reports | No | `enableSMSDeliveryReports` |
| Max MMS image height | 1944 | `maxImageHeight` |
| Max MMS image width | 2592 | `maxImageWidth` |
| Max MMS size (bytes) | 1048576 | `maxMessageSize` |
| Bandwidth | GPRS:24,24, EDGE:70,18, UMTS:115,115, CDMA-IS95A:14,14, CDMA-IS95B:14,14, 1xRTT:30,30, EvDo-rev.0:750,48, EvDo-rev.A:950,550, HSDPA:4300,620, HSUPA:4300,1800, H… | `bandwidth_string_array` |
| Carrier instant lettering encoding | EUC-KR | `carrier_instant_lettering_encoding_string` |
| Carrier instant lettering invalid chars | ["<>\\\n] | `carrier_instant_lettering_invalid_chars_string` |
| Carrier instant lettering length limit | 64 | `carrier_instant_lettering_length_limit_int` |

## Other networks in South Korea

| MCC | MNC | Network | TADIG |
|---|---|---|---|
| 450 | 01 | [Globalstar Asia Pacific](https://mcc-mnc.org/networks/450_01.md) | — |
| 450 | 02 | [KT](https://mcc-mnc.org/networks/450_02.md) | — |
| 450 | 03 | [Power 17](https://mcc-mnc.org/networks/450_03.md) | — |
| 450 | 05 | [SKTelecom](https://mcc-mnc.org/networks/450_05.md) | KORSK |
| 450 | 06 | [LG U](https://mcc-mnc.org/networks/450_06.md) | KORLU |
| 450 | 07 | [KT](https://mcc-mnc.org/networks/450_07.md) | — |
| 450 | 08 | [olleh](https://mcc-mnc.org/networks/450_08.md) | KORKF |
| 450 | 11 | [Tplus](https://mcc-mnc.org/networks/450_11.md) | — |
| 450 | 12 | [SKTelecom](https://mcc-mnc.org/networks/450_12.md) | — |

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