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North-West Cable System

In Service

2,100 km · 3 Landing Points · 1 Countries · Ready for Service: 2016

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Specifications

Length2,100 km
StatusIn Service
Ready for Service2016
Landing Points3
Countries1

Owners

Vocus Communications

Landing Points (3)

Location Country Position
Darwin, NT, Australia AU Australia -12.4675°, 130.8431°
Port Hedland, WA, Australia AU Australia -20.3135°, 118.5772°
Wurrumiyanga, NT, Australia AU Australia -11.7626°, 130.6321°

If this cable is cut

What each country and landing point keeps if North-West Cable System goes down. A calculation from our cable and landing-point database, not a forecast.

CountryOther international cablesLand linksWhat remains
Australia25 no reserve of 25 cables

Landing points with no other cable nearby

  • Port Hedland, WA, Australia: no other cable lands within 50 km.
  • Wurrumiyanga, NT, Australia: no other cable lands within 50 km.

On an island this means losing the submarine link; on the mainland traffic can still go over land.

Our alerts on this cable in the last 180 days: 1, last on 5 Sep 2026. Events feed →

Counted: other international cables landing in the same country (domestic cables between points of one country are not a way out), other cables at landing points within 50 km, and whether the country has land links. Not counted: cable capacity, operator contracts and satellite. Use as a first look at dependence, not as a statement of what would happen.

Load profile

+1.6% above night floor · typical for this hour
moderate daily load: +13% at peak hours · usual peak 22:00 UTC · 3 corridors
100 0006121823 00:00 UTC · +4.5%01:00 UTC · +1.9%02:00 UTC · +1.0%03:00 UTC · +1.7%04:00 UTC · +2.1%05:00 UTC · +1.1%06:00 UTC · +0.3%07:00 UTC · +1.5%08:00 UTC · +1.7%09:00 UTC · +1.9%10:00 UTC · +0.9%12:00 UTC · +3.2%13:00 UTC · +2.1%14:00 UTC · +3.2%15:00 UTC · +1.9%16:00 UTC · +3.0%17:00 UTC · +1.5%19:00 UTC · +1.1%20:00 UTC · +1.6%21:00 UTC · +4.6%22:00 UTC · +12.6%23:00 UTC · +5.5%
Indirect estimate from diurnal latency rise under load (queueing delay), normalized per corridor to its night floor. This is NOT operator utilization data.

Live Performance

590
measurements
9
probes
125
days monitored
238.4
ms avg RTT
1
anomalies

Monitored from 2026-06-15 through 2026-10-18 - live ICMP round-trip time measurements via our monitoring probes. All values below are recomputed daily from raw probe data.

Measurement sources

Probe Location Samples Avg Min-Max Last seen
#6427 own probe Sydney AU 197 176.6 ms 107.3-312.3 2026-10-18
#6410 own probe Sao Paulo BR 195 394.2 ms 352.2-714.4 2026-10-18
#6487 control probe 109 45.5 ms 0.7-68.1 2026-08-24
own probe Almaty KZ 75 294.5 ms 253.5-376.2 2026-10-02
#6568 own probe Singapore SG 10 80.7 ms 79.5-81.7 2026-10-18
#7062 own probe Cape Town ZA 1 317.3 ms 317.3-317.3 2026-07-11
own probe Minsk BY 1 228.3 ms 228.3-228.3 2026-07-11
own probe Tbilisi GE 1 304.3 ms 304.3-304.3 2026-09-05
own probe Rostov RU 1 265.6 ms 265.6-265.6 2026-09-05

About the North-West Cable System Cable System

Overview

The North-West Cable System is a submarine telecommunications cable spanning 2100 kilometers within Australia. Operational since 2016, it connects three key landing points: Darwin, Port Hedland, and Wurrumiyanga. This cable plays a crucial role in enhancing connectivity across northern and western regions of Australia, addressing the unique challenges of telecommunications in remote areas. Its deployment has strengthened communication infrastructure for both urban centers and isolated communities, contributing to regional development and digital inclusion.

As a domestic cable system, the North-West Cable System focuses on linking geographically distant parts of Australia. It serves as an essential backbone for data transmission and supports sectors such as government, industry, and local businesses in these areas. Its strategic placement reflects the importance of connecting sparsely populated yet economically significant regions, including mining hubs and indigenous communities.

Route and Landings

The North-West Cable System begins its journey in Darwin, the capital city of the Northern Territory. Darwin serves as a critical telecommunications hub for northern Australia, with its proximity to Southeast Asia making it a gateway for international connectivity. The city benefits from enhanced infrastructure, supporting its role as a regional center for trade, defense, and technology.

The cable continues westward to Port Hedland in Western Australia, a major port town and one of the largest iron ore export hubs globally. Port Hedland’s economic significance stems from its mining and export activities, making reliable telecommunications vital for operational efficiency and international trade. The cable’s presence ensures robust connectivity for industries and residents in this remote yet economically pivotal area.

Finally, the cable terminates at Wurrumiyanga, located on Bathurst Island in the Northern Territory. Wurrumiyanga is part of the Tiwi Islands and is home to indigenous communities. Improved telecommunications infrastructure here supports social services, education, and local businesses, fostering better integration with the broader Australian economy. The cable’s reach into this remote region underscores its role in bridging the digital divide.

Ownership and History

The North-West Cable System is owned and operated by Vocus Communications, a prominent Australian telecommunications company known for its expertise in submarine cable systems. Vocus Communications has a strong track record in deploying infrastructure that connects remote and urban areas, ensuring reliable and high-speed data transmission across vast distances.

The cable was officially ready for service in 2016, marking a significant milestone in Australia’s domestic telecommunications landscape. Its development reflects the growing demand for enhanced connectivity in northern and western Australia, regions characterized by their geographical isolation and economic importance. By linking Darwin, Port Hedland, and Wurrumiyanga, the North-West Cable System has contributed to the resilience and efficiency of Australia’s telecommunications network.

While specific updates on the cable’s current operational status are unavailable, its strategic importance suggests continued use in supporting regional and national connectivity. The cable’s deployment aligns with broader efforts to improve telecommunications infrastructure in remote and underserved areas.

What Our Measurements Show

Our monitoring of the North-West Cable System provides valuable insights into its performance across 609 measured corridors. The system demonstrates a best round-trip time (RTT) of 18 milliseconds, indicating high-speed data transmission under optimal conditions. The average RTT of 152 milliseconds reflects the challenges of maintaining consistent performance over long distances in remote regions.

These measurements highlight the cable’s capability to deliver reliable connectivity despite the geographic and environmental factors inherent to its route. The cable traverses diverse terrains, including coastal waters and island landings, requiring robust engineering to ensure uninterrupted service. The performance metrics underscore its role in supporting critical applications such as business operations, government services, and community communication.

By providing consistent and measurable connectivity, the North-West Cable System enhances digital access for the regions it serves. Its performance data reaffirms its importance as part of Australia’s domestic telecommunications infrastructure, bridging gaps between urban centers and remote communities.

What next: Explore North-West Cable System on the interactive submarine cable map, browse the full catalog of submarine cables, or follow live network events and real-world internet latency.

Health

Status✓ Normal
RTT387.78 ms / base 385.72 ms
Last checked2026-10-18 23:03

Monitored by our probe network. Open monitoring →

RTT History

Route: #6427 → Darwin Measured: 2026-10-18 23:03
222.9 ms
Min Avg Max #
7 days 222.2 223.1 224.5 7
30 days 204.9 214.0 229.9 41
60 days 140.1 182.7 312.3 181

Health Timeline

Tue, Oct 13
View full event log →
Hop Anomaly
4ms → 20ms (4.91×)
17:00
Fri, Oct 2
View full event log →
Hop Anomaly
15ms → 180ms (11.78×)
15:31
Hop Anomaly
14ms → 150ms (10.77×)
11:30
Wed, Sep 30
View full event log →
Hop Anomaly
11ms → 593ms (53.07×)
09:31
Tue, Sep 29
View full event log →
Hop Anomaly
4ms → 28ms (7.87×)
16:00
Sun, Sep 20
View full event log →
Hop Anomaly
11ms → 226ms (19.85×)
13:00
Hop Anomaly
6ms → 63ms (10.66×)
04:31
Sat, Sep 5
View full event log →
Darwin
Resolved
154ms → 290ms
16:01
Darwin
Improving
154ms → 304ms
15:02
Darwin
Alert Created
154ms → 312ms (2.03×)
11:33
Darwin
Anomaly Confirmed
154ms → 312ms (2.03×)
11:33
Darwin
RTT Spike
154ms → 312ms (2.03×)
11:33
Darwin
RTT Spike
145ms → 312ms (2.15×)
11:02
Mon, Aug 31
View full event log →
Hop Anomaly
7ms → 87ms (12.83×)
19:31
Sat, Aug 22
View full event log →
Hop Anomaly
13ms → 1068ms (82.53×)
16:00
Sat, Aug 15
View full event log →
Hop Anomaly
6ms → 20ms (3.12×)
07:00
Thu, Aug 13
View full event log →
Hop Anomaly
5ms → 69ms (15.24×)
23:31
Thu, Aug 6
View full event log →
Hop Anomaly
24ms → 327ms (13.49×)
08:00
Fri, Jul 24
View full event log →
Hop Anomaly
4ms → 54ms (12.90×)
10:30
Mon, Jul 6
View full event log →
Hop Anomaly
19ms → 432ms (22.57×)
07:30
Sun, Jul 5
View full event log →
Hop Anomaly
4ms → 55ms (12.42×)
08:00
Sun, Jun 28
View full event log →
Hop Anomaly
10ms → 371ms (37.86×)
18:30
Fri, Jun 26
View full event log →
Hop Anomaly
24ms → 110ms (4.63×)
19:30
Thu, Jun 25
View full event log →
Hop Anomaly
8ms → 175ms (21.41×)
16:30
Wed, Jun 24
View full event log →
Hop Anomaly
3ms → 53ms (16.27×)
07:00
Sun, Jun 21
View full event log →
Hop Anomaly
8ms → 32ms (4.12×)
05:00
Fri, Jun 19
View full event log →
Hop Anomaly
16ms → 336ms (21.40×)
23:30
Wed, Jun 10
View full event log →
Hop Anomaly
11ms → 63ms (5.59×)
22:00
Hop Anomaly
8ms → 30ms (3.64×)
01:01
Fri, Jun 5
View full event log →
Hop Anomaly
3ms → 32ms (9.74×)
12:32

Incident history

Significant latency incidents our probes detected on this cable, each with its own report.

All cable incidents →

FAQ

What is the length of the North-West Cable System cable?
The North-West Cable System submarine cable is 2,100 km long.
Which countries does North-West Cable System connect?
North-West Cable System connects 1 country via 3 landing points.
Who owns the North-West Cable System cable?
North-West Cable System is owned by a consortium including Vocus Communications.
When was North-West Cable System put into service?
The North-West Cable System cable entered service in 2016.
North-West Cable System
  • Length2,100 km
  • StatusIn Service
  • Ready for Service2016

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