Telstra has confirmed that the mobile network outage first identified at approximately 4:30am AEST on Wednesday 8 July has been fully resolved. The issue was traced to a network device responsible for keeping time synchronised across parts of the mobile network, and when synchronisation was lost it caused intermittent impacts to some voice and data services. Most calls and data services were working correctly by mid-morning, with the issue mostly resolved by 4:00pm the same day, though some business customers took a little longer to be fully restored.
A subsequent, related issue affecting some calls including Triple Zero was also identified as the original outage was being resolved, caused by the same underlying software defect, and was addressed by 12:30pm on 9 July. The root cause was confirmed as a software defect rather than a cyber incident. Customers can now call Triple Zero with confidence, and Telstra has apologised for the disruption caused during the outage
Posted Jul 15, 2026 - 12:44 AEST
Update
⚠️ Important Safety Information Telstra has resolved the original issue behind today's outage, but has identified a secondary issue affecting some Triple Zero (000) calls. Affected callers may receive an error message, and the phone will attempt to connect to an alternative mobile network.
If you need to call Triple Zero and experience an issue:
Wait up to 90 seconds for your phone to connect to an alternative network, if one is available. Use a different phone to make the call if possible.
Telstra has confirmed that where a Triple Zero call fails, a welfare check will be triggered automatically as part of their backup process.
Scale Telstra has indicated the potential impact may affect over 100,000 services nationally.
What We're Doing Telstra has stated they are working urgently to resolve this issue. We are monitoring the situation and will pass on updates as they're provided.
Next Update Telstra will provide a further update before 3:00am AEST on 09/07/2026. We will relay this as soon as it's available.
Incident Status Update — Telstra Network Outage Status: Monitoring — Restoration in Progress
Update Telstra has advised that good progress is being made restoring services following this morning's nationwide mobile outage. Some customers may still experience intermittent issues with mobile calls and data. If you're still having trouble, Telstra recommends restarting your phone completely, rather than toggling airplane mode on and off.
Next Update Telstra has confirmed they will provide a further update before 4:00pm AEST today (08/07/2026). We will pass on any new information as soon as it's available.
Incident Status Update — Telstra Network Outage Status: Monitoring — External Provider Issue Time (AEST): 8 July 2026, 6AM AEST
Summary Telstra is currently experiencing a nationwide outage affecting mobile voice calls and data services, with reports beginning from approximately 3:00am AEST this morning. The outage is impacting Telstra directly as well as mobile virtual network operators (MVNOs) that run on the Telstra network, including Belong, Boost, Aldi Mobile, and Superloop.
Impact to Telair Services Customers using Telstra mobile as a 4G/5G failover link may experience intermittent or unavailable backup connectivity during this time
Root Cause Telstra has not yet confirmed the cause of the outage. We will update this notice as more information becomes available.
What We're Doing We are monitoring the situation closely and liaising with Telstra where relevant to our services. This is an external network issue outside of Telair's infrastructure.
For the Latest Information As this is a Telstra network-wide issue, the most accurate and up-to-date status is available directly from Telstra: 🔗 https://www.telstra.com.au/outages
We recommend checking this page directly for restoration updates, as Telstra is the authoritative source for the incident.
Posted Jul 08, 2026 - 08:40 AEST
This incident affected: Data Services (Mobile Data).