---
title: "CSL Limited: MCC 454 MNC 18"
mcc: "454"
mnc: "18"
plmn: "45418"
operator: "CSL Limited"
country: "Hong Kong"
country_iso: "HK"
region: "Asia & Middle East"
technologies: ["2G"]
updated: "2025-04-09"
canonical: "https://mcc-mnc.org/networks/454_18"
---

# CSL Limited: MCC 454, MNC 18 (Hong Kong)

**CSL Limited** is a mobile network in [Hong Kong](https://mcc-mnc.org/countries/hong_kong.md) (Asia & Middle East), identified by MCC **454** and MNC **18**: PLMN ID 45418, also written 454-18 or 454 18. It runs 2G. Calling: VoLTE: Likely.

## Identifiers

| Field | Value |
|---|---|
| MCC (Mobile Country Code) | 454 |
| MNC (Mobile Network Code) | 18 |
| PLMN ID (MCC+MNC) | 45418 |
| TADIG code | — |
| Brand | — |
| Operator | CSL Limited |
| Country | Hong Kong (HK) |
| Region | Asia & Middle East |
| Dialling code | — |
| Technologies | 2G |
| Last updated | 2025-04-09 |

## Technologies & bands

| Generation | Bands | Measured cells |
|---|---|---|
| 2G | [GSM 1800](https://mcc-mnc.org/coverage/gsm_1800.md), [GSM 900](https://mcc-mnc.org/coverage/gsm_900.md) | — |

## Voice & calling services

| Service | Status | Source |
|---|---|---|
| VoLTE | Likely | Network publishes an IMS APN |
| 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 CSL Limited

CSL Limited, operating in Hong Kong, is a prominent mobile network operator serving customers within the Asia & Middle East region. Identified by the Mobile Country Code (MCC) 454, which designates Hong Kong, and the Mobile Network Code (MNC) 18, CSL provides a range of mobile communication services, including voice, data, and SMS. As one of the established players in Hong Kong's competitive telecommunications market, CSL competes with other major networks such as SmarTone and Hutchison Telecom, striving to deliver innovative solutions and reliable connectivity to its subscribers. CSL has been providing different services, including 5G, since the technology has been provisioned within Hong Kong over the last few years.

With a substantial subscriber base throughout Hong Kong, CSL Limited plays a significant role in the region's digital landscape. The network continuously invests in infrastructure upgrades to enhance network coverage and capacity, catering to the ever-increasing demand for mobile data. For users identifying a network via MCC and MNC, knowing that 454 18 corresponds to CSL in Hong Kong is crucial for troubleshooting connectivity issues or confirming network access, especially when roaming or using multi-SIM devices. Being part of the Asia & Middle East footprint, CSL provides connectivity to the busy country of Hong Kong.

## MVNOs on CSL Limited

- [SUN Mobile](https://mcc-mnc.org/mvno/sun-mobile.md)

## APN settings

| Name | APN | Types | Protocol | MMSC | MMS proxy | MMS port | Source |
|---|---|---|---|---|---|---|---|
| 1O1O | `mobile` | default, hipri, mms | — | `http://192.168.58.171:8002` | 192.168.59.51 | 8080 | LineageOS |
| csl | `mobile` | default, hipri, ia, mms | IPV4V6 | `http://192.168.58.171:8002` | 192.168.59.51 | 8080 | AOSP |
| SUN Mobile | `SUNMobile` | default, mms | — | `http://192.168.58.171:8002` | 192.168.59.61 | 8080 | LineageOS |
| IMS | `ims` | ims | IPV6 | — | — | — | AOSP |
| 1O1O Tethering | `lte.internet` | dun | — | — | — | — | LineageOS |
| csl UT | `HOS` | xcap | — | — | — | — | AOSP |

Settings come from Android's AOSP and LineageOS APN lists and user corrections.

## APN settings: SUN Mobile

| Name | APN | Types | Protocol | MMSC | MMS proxy | MMS port | Source |
|---|---|---|---|---|---|---|---|
| SUN Mobile | `SUNMobile` | default, hipri, ia, mms | IPV4V6 | `http://192.168.58.171:8002` | 192.168.59.61 | 8080 | AOSP |
| SUN Mobile | `SUNMobile` | default, mms | — | `http://192.168.58.171:8002` | 192.168.59.61 | 8080 | LineageOS |

## APN settings: Other brands (brand not identified)

| Name | APN | Types | Protocol | MMSC | MMS proxy | MMS port | Source |
|---|---|---|---|---|---|---|---|
| 1O1O | `mobile` | default, hipri, ia, mms | IPV4V6 | `http://192.168.58.171:8002` | 192.168.59.51 | 8080 | AOSP |
| 1O1O | `mobile` | default, hipri, mms | — | `http://192.168.58.171:8002` | 192.168.59.51 | 8080 | LineageOS |
| csl | `mobile` | default, hipri, ia, mms | IPV4V6 | `http://192.168.58.171:8002` | 192.168.59.51 | 8080 | AOSP |
| csl | `mobile` | default, hipri, mms | — | `http://192.168.58.171:8002` | 192.168.59.51 | 8080 | LineageOS |
| Global Call | `globalcall` | default, hipri, ia, mms | IPV4V6 | `http://192.168.58.171:8002` | 192.168.59.51 | 8080 | AOSP |
| Global Call | `globalcall` | default, hipri, mms | — | `http://192.168.58.171:8002` | 192.168.59.51 | 8080 | LineageOS |
| HK Prepaid | `mobile` | default, hipri, ia, mms | IPV4V6 | `http://192.168.58.171:8002` | 192.168.59.51 | 8080 | AOSP |
| HK Prepaid | `mobile` | default, hipri, ia, mms | IPV4V6 | `http://192.168.58.171:8002` | 192.168.59.51 | 8080 | AOSP |
| HK Prepaid | `mobile` | default, hipri, ia, mms | IPV4V6 | `http://192.168.58.171:8002` | 192.168.59.51 | 8080 | AOSP |
| 1O1O IMS | `ims` | ims | IPV6 | — | — | — | AOSP |
| csl IMS | `ims` | ims | IPV6 | — | — | — | AOSP |
| IMS | `ims` | ims | IPV6 | — | — | — | AOSP |
| IMS | `ims` | ims | IPV6 | — | — | — | AOSP |
| IMS | `ims` | ims | IPV6 | — | — | — | AOSP |
| IMS | `ims` | ims | IPV6 | — | — | — | AOSP |
| SUN Mobile IMS | `ims` | ims | IPV6 | — | — | — | AOSP |
| 1O1O Tethering | `lte.internet` | dun | — | — | — | — | LineageOS |
| csl Tethering | `lte.internet` | dun | — | — | — | — | LineageOS |

## Other networks in Hong Kong

| MCC | MNC | Network | TADIG |
|---|---|---|---|
| 454 | 00 | [1O1O / One2Free / New World Mobility / SUNMobile](https://mcc-mnc.org/networks/454_00.md) | HKGTC |
| 454 | 01 | [CITIC Telecom 1616](https://mcc-mnc.org/networks/454_01.md) | — |
| 454 | 02 | [CSL Limited](https://mcc-mnc.org/networks/454_02.md) | — |
| 454 | 03 | [3](https://mcc-mnc.org/networks/454_03.md) | HKGH3 |
| 454 | 04 | [3 2G](https://mcc-mnc.org/networks/454_04.md) | HKGHT |
| 454 | 05 | [3 CDMA](https://mcc-mnc.org/networks/454_05.md) | — |
| 454 | 06 | [SmarTone](https://mcc-mnc.org/networks/454_06.md) | HKGSM |
| 454 | 07 | [China Unicom](https://mcc-mnc.org/networks/454_07.md) | — |
| 454 | 08 | [Truphone](https://mcc-mnc.org/networks/454_08.md) | — |
| 454 | 09 | [China Motion Telecom](https://mcc-mnc.org/networks/454_09.md) | — |
| 454 | 10 | [New World Mobility](https://mcc-mnc.org/networks/454_10.md) | HKGNW |
| 454 | 11 | [China-Hong Kong Telecom](https://mcc-mnc.org/networks/454_11.md) | — |
| 454 | 12 | [CMCC HK](https://mcc-mnc.org/networks/454_12.md) | HKGPP |
| 454 | 13 | [CMCC HK](https://mcc-mnc.org/networks/454_13.md) | — |
| 454 | 14 | [Hutchison Telecom](https://mcc-mnc.org/networks/454_14.md) | — |
| 454 | 15 | [SmarTone Mobile Communications Limited](https://mcc-mnc.org/networks/454_15.md) | — |
| 454 | 16 | [PCCW Mobile 2G](https://mcc-mnc.org/networks/454_16.md) | HKGMC |
| 454 | 17 | [SmarTone Mobile Communications Limited](https://mcc-mnc.org/networks/454_17.md) | — |
| 454 | 19 | [PCCW Mobile 3G](https://mcc-mnc.org/networks/454_19.md) | HKGM3 |
| 454 | 20 | [PCCW Mobile 4G](https://mcc-mnc.org/networks/454_20.md) | — |
| 454 | 21 | [21Vianet Mobile Ltd.](https://mcc-mnc.org/networks/454_21.md) | — |
| 454 | 22 | [263 Mobile Communications (HongKong) Limited](https://mcc-mnc.org/networks/454_22.md) | — |
| 454 | 23 | [Lycamobile](https://mcc-mnc.org/networks/454_23.md) | — |
| 454 | 24 | [Multibyte Info Technology Ltd](https://mcc-mnc.org/networks/454_24.md) | — |
| 454 | 25 | [Hong Kong Government](https://mcc-mnc.org/networks/454_25.md) | — |
| 454 | 26 | [Hong Kong Government](https://mcc-mnc.org/networks/454_26.md) | — |
| 454 | 29 | [PCCW Mobile CDMA](https://mcc-mnc.org/networks/454_29.md) | — |
| 454 | 30 | [China Data Enterprises Ltd](https://mcc-mnc.org/networks/454_30.md) | — |
| 454 | 31 | [CTExcel](https://mcc-mnc.org/networks/454_31.md) | — |
| 454 | 32 | [Hong Kong Broadband Network Ltd](https://mcc-mnc.org/networks/454_32.md) | — |
| 454 | 35 | [Webbing Hong Kong Ltd](https://mcc-mnc.org/networks/454_35.md) | — |

---

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