INDIGO-West, one of two direct Perth–Singapore cables, has been out of service since a shunt fault in early August inside the Perth Submarine Cable Protection Zone. That fault was repaired on 15 September, but traffic did not restore: an existing shunt fault off Singapore had become a full cable break. AusInternet says the repair off Singapore has been delayed to between 25 October and 3 November.
With the Australia Singapore Cable (ASC) also broken since 4 September, both direct Perth–Singapore systems are out of service. Traffic has been rerouted over longer paths.
ETR revised 4× · slipped 10 days since the first estimate
SUBCO's co-CEO raised concerns about vessel activity near the faults, and the Australian Federal Police said it was assessing a report. No cause has been established.
Status: Restored
The repair of the Indigo West cable system has been successfully completed
Status: Testing
We are seeing traffic starting to route to this cable again. Further monitoring over the next few days while we wait for official status
Repairs are expected to commence on 25 Oct 2026 and ETR is on 3 Nov 2026.
Repair vessel has arrived at the fault location
Repair vessel has arrived at the fault location and began setup for electroding and Remotely Operated Vehicle (ROV) inspection of the cable damage with an ETR on 3 Nov 2026.
Repair ship leaves Singapore, INDIGO-West repair targeted for 1 November
The repair ship leaves Singapore on 23 October for Batam, Indonesia, to collect repair spares on 24 October, then heads to the INDIGO-West repair site. Indonesian permits and approvals are in place. Vocus says INDIGO-West will be repaired before the Australia Singapore Cable, with a target completion of 1 November, subject to vessel operations, weather and the condition of the cable once recovered.
Repair now expected around 1 November
Vocus says the repair ship is now expected to leave Singapore around 22 October, delayed from earlier plans. INDIGO-West will be repaired first, with completion expected around 1 November, before the ship moves on to repair the Australia Singapore Cable.
Repair delayed to 25 Oct – 3 Nov
The INDIGO West shunt fault repair has been delayed. The new repair window is 25 October 2026, 01:00 UTC to 3 November 2026, 23:59 UTC, replacing the earlier 16–26 October window.
Repairs off Singapore is expected to be on 16 Oct 2026 until 26 Oct 2026.
Planned repairs will begin soon.
INDIGO-West still down as Singapore-side fault becomes a full break
AusInternet says the Perth repair is complete, but an existing shunt fault on INDIGO-West off Singapore has become a full cable break and services remain down. Repairs off Singapore are expected between 16 and 26 October 2026.
Restoration scheduled for 24 October
Vocus says INDIGO-West restoration is scheduled for 24 October, and that it has agreed to sequence the INDIGO-West repair ahead of ASC.
Repair completed, but traffic did not restore
An operator notice relayed by an ISP says restoration works finished on 15 September. Traffic failed to restore after power-up, and testing found the shunt fault had deteriorated into a full cut.
Shunt faults reported on INDIGO-West and INDIGO-Central off Perth
SUBCO reported shunt faults on both INDIGO systems in close succession, inside the Perth Submarine Cable Protection Zone.
Supports: status, fault location
Supports: fault confirmed, status
Supports: status
Supports: status
Supports: repair estimate, status
Supports: status, repair estimate
“UPDATE 21/09/2026 10:50 AEST Repairs for the Indigo West cable system are estimated to be completed by October 24, 2026 Repairs for the ASC cable system are estimated to be completed by November 4, 2026”
Supports: status, fault confirmed
“We are currently experiencing a service disruption affecting the Indigo West link due to instability.”
Supports: status, repair estimate
Supports: cause
Supports: status, repair estimate, restoration
“The repair vessel is scheduled to depart Singapore today, 23 October, bound for Batam, Indonesia... before proceeding to the Indigo West cable repair location. 1 November: Target completion of Indigo West repair.”
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