---
title: "GEMCO: MCC 505 MNC 42"
mcc: "505"
mnc: "42"
plmn: "50542"
brand: "GEMCO"
operator: "Groote Eylandt Mining Company Pty Ltd"
country: "Australia"
country_iso: "AU"
region: "Oceania"
updated: "2025-04-09"
canonical: "https://mcc-mnc.org/networks/505_42"
---

# GEMCO: MCC 505, MNC 42 (Australia)

**GEMCO** (operator: Groote Eylandt Mining Company Pty Ltd) is a mobile network in [Australia](https://mcc-mnc.org/countries/australia.md) (Oceania), identified by MCC **505** and MNC **42**: PLMN ID 50542, also written 505-42 or 505 42.

## Identifiers

| Field | Value |
|---|---|
| MCC (Mobile Country Code) | 505 |
| MNC (Mobile Network Code) | 42 |
| PLMN ID (MCC+MNC) | 50542 |
| TADIG code | — |
| Brand | GEMCO |
| Operator | Groote Eylandt Mining Company Pty Ltd |
| Country | Australia (AU) |
| Region | Oceania |
| Dialling code | — |
| Technologies | — |
| Last updated | 2025-04-09 |

## Technologies & bands

| Generation | Bands | Measured cells |
|---|---|---|
| 4G | No bands on file | 1 |

## Voice & calling services

| Service | Status | Source |
|---|---|---|
| VoLTE | Unknown | — |
| 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 GEMCO

GEMCO Mobile is a unique mobile network operating in Australia, specifically serving the Groote Eylandt Mining Company Pty Ltd (GEMCO) on Groote Eylandt, an island within the Oceania region. Designated with Mobile Country Code (MCC) 505, which identifies Australia, and Mobile Network Code (MNC) 42, GEMCO Mobile provides essential communication services to support the mining operations and the community residing on the island. Unlike larger, national mobile network operators such as Telstra, Optus, and Vodafone, GEMCO Mobile focuses on localized coverage and tailored solutions to meet the specific needs of the mining company and its associated infrastructure.

While public information regarding GEMCO’s network specifics is limited, it likely utilizes technologies appropriate for the remote environment, potentially incorporating satellite backhaul and robust infrastructure to ensure reliable connectivity. Given the reliance on consistent communications for mining operations, redundancy and resilience would be key features of their network design. It stands as an example of how specific industries find alternative tailored solutions to connectivity depending upon the geographic location and infrastructure capabilities across Australia.

## Cell towers

OpenCelliD has measured **1** cells on this network across 1 location/tracking areas, first seen 2026-06-28 and last seen 2026-06-29 (data as of 2026-09-27).

| Radio | Generation | Cells |
|---|---|---|
| LTE | 4G | 1 |

Locate a single cell by MCC, MNC, LAC/TAC and cell ID with the https://mcc-mnc.org/cell-id-lookup tool, `GET /api/v1/cells` or the MCP `lookup_cell` tool. Cell data from OpenCelliD (https://opencellid.org), licensed CC BY-SA 4.0.

## Other networks in Australia

| MCC | MNC | Network | TADIG |
|---|---|---|---|
| 505 | 01 | [Telstra](https://mcc-mnc.org/networks/505_01.md) | AUSTA |
| 505 | 02 | [Optus](https://mcc-mnc.org/networks/505_02.md) | AUSOP |
| 505 | 03 | [Vodafone](https://mcc-mnc.org/networks/505_03.md) | AUSVF |
| 505 | 04 | [Department of Defence](https://mcc-mnc.org/networks/505_04.md) | — |
| 505 | 05 | [Ozitel](https://mcc-mnc.org/networks/505_05.md) | — |
| 505 | 06 | [3](https://mcc-mnc.org/networks/505_06.md) | — |
| 505 | 07 | [Vodafone](https://mcc-mnc.org/networks/505_07.md) | — |
| 505 | 08 | [One Tel](https://mcc-mnc.org/networks/505_08.md) | — |
| 505 | 09 | [Airnet](https://mcc-mnc.org/networks/505_09.md) | — |
| 505 | 10 | [Norfolk Is](https://mcc-mnc.org/networks/505_10.md) | — |
| 505 | 11 | [Telstra](https://mcc-mnc.org/networks/505_11.md) | — |
| 505 | 12 | [3](https://mcc-mnc.org/networks/505_12.md) | — |
| 505 | 13 | [RailCorp](https://mcc-mnc.org/networks/505_13.md) | — |
| 505 | 14 | [AAPT](https://mcc-mnc.org/networks/505_14.md) | — |
| 505 | 15 | [3GIS](https://mcc-mnc.org/networks/505_15.md) | — |
| 505 | 16 | [VicTrack](https://mcc-mnc.org/networks/505_16.md) | — |
| 505 | 17 | [Optus](https://mcc-mnc.org/networks/505_17.md) | — |
| 505 | 18 | [Pactel](https://mcc-mnc.org/networks/505_18.md) | — |
| 505 | 19 | [Lycamobile](https://mcc-mnc.org/networks/505_19.md) | — |
| 505 | 20 | [Ausgrid Corporation](https://mcc-mnc.org/networks/505_20.md) | — |
| 505 | 21 | [Queensland Rail Limited](https://mcc-mnc.org/networks/505_21.md) | — |
| 505 | 22 | [iiNet Ltd](https://mcc-mnc.org/networks/505_22.md) | — |
| 505 | 23 | [Challenge Networks Pty Ltd](https://mcc-mnc.org/networks/505_23.md) | — |
| 505 | 24 | [Advanced Communications Technologies Pty. Ltd.](https://mcc-mnc.org/networks/505_24.md) | — |
| 505 | 25 | [Pilbara Iron Company Services Pty Ltd](https://mcc-mnc.org/networks/505_25.md) | — |
| 505 | 26 | [Dialogue Communications Pty. Ltd.](https://mcc-mnc.org/networks/505_26.md) | — |
| 505 | 27 | [Nexium Telecommunications](https://mcc-mnc.org/networks/505_27.md) | — |
| 505 | 28 | [RCOM International Pty Ltd](https://mcc-mnc.org/networks/505_28.md) | — |
| 505 | 30 | [Compatel Limited](https://mcc-mnc.org/networks/505_30.md) | — |
| 505 | 31 | [BHP Billiton](https://mcc-mnc.org/networks/505_31.md) | — |
| 505 | 32 | [Thales Australia](https://mcc-mnc.org/networks/505_32.md) | — |
| 505 | 33 | [CLX Networks Pty Ltd](https://mcc-mnc.org/networks/505_33.md) | — |
| 505 | 34 | [Santos Limited](https://mcc-mnc.org/networks/505_34.md) | — |
| 505 | 35 | [MessageBird Pty Ltd](https://mcc-mnc.org/networks/505_35.md) | — |
| 505 | 36 | [Optus](https://mcc-mnc.org/networks/505_36.md) | — |
| 505 | 37 | [Yancoal Australia Ltd](https://mcc-mnc.org/networks/505_37.md) | — |
| 505 | 38 | [Truphone](https://mcc-mnc.org/networks/505_38.md) | — |
| 505 | 39 | [Telstra](https://mcc-mnc.org/networks/505_39.md) | — |
| 505 | 40 | [CITIC Pacific Mining](https://mcc-mnc.org/networks/505_40.md) | — |
| 505 | 41 | [Aqura Technologies Pty](https://mcc-mnc.org/networks/505_41.md) | — |
| 505 | 43 | [Arrow Energy Pty Ltd](https://mcc-mnc.org/networks/505_43.md) | — |
| 505 | 44 | [Roy Hill Iron Ore Pty Ltd](https://mcc-mnc.org/networks/505_44.md) | — |
| 505 | 45 | [Clermont Coal Operations Pty Ltd](https://mcc-mnc.org/networks/505_45.md) | — |
| 505 | 46 | [AngloGold Ashanti Australia Ltd](https://mcc-mnc.org/networks/505_46.md) | — |
| 505 | 47 | [Woodside Energy Limited](https://mcc-mnc.org/networks/505_47.md) | — |
| 505 | 48 | [Titan ICT Pty Ltd](https://mcc-mnc.org/networks/505_48.md) | — |
| 505 | 50 | [Pivotel Group Pty Limited](https://mcc-mnc.org/networks/505_50.md) | — |
| 505 | 61 | [CommTel NS](https://mcc-mnc.org/networks/505_61.md) | — |
| 505 | 62 | [NBN](https://mcc-mnc.org/networks/505_62.md) | — |
| 505 | 68 | [NBN](https://mcc-mnc.org/networks/505_68.md) | — |
| 505 | 71 | [Telstra](https://mcc-mnc.org/networks/505_71.md) | — |
| 505 | 72 | [Telstra](https://mcc-mnc.org/networks/505_72.md) | — |
| 505 | 88 | [Pivotel Group Pty Limited](https://mcc-mnc.org/networks/505_88.md) | — |
| 505 | 90 | [Optus](https://mcc-mnc.org/networks/505_90.md) | — |
| 505 | 99 | [One Tel](https://mcc-mnc.org/networks/505_99.md) | — |

---

HTML version: https://mcc-mnc.org/networks/505_42 · Index for AI agents: https://mcc-mnc.org/llms.txt · Data is community-maintained; corrections welcome on the HTML page.