Telstra outage cripples emergency calls, trains in Australia

A widespread outage of Telstra's mobile network crippled voice and data services across Australia on Wednesday, July 8, 2026, causing cascading failures in critical infrastructure, disrupting hundreds of emergency calls, and stranding thousands of commuters. The disruption, which began around 4:30 a.m. AEST, was compounded by a secondary fault in the evening that again affected some calls to the Triple Zero emergency line.

Telstra's chief financial officer, Michael Ackland, attributed the primary outage to a software fault that disrupted timekeeping nodes in Melbourne and Sydney data centers, sending network timing systems back to 2006. This incorrect date caused parts of the network to reject authentication from customers' devices. Ackland stated there was no indication of malicious activity and apologized for the widespread disruption. The company reported that approximately 90 percent of services had been restored by the afternoon, with the primary issues resolved by 4 p.m.

The impact was severe and far-reaching. Victoria's entire regional passenger rail network, V/Line, was suspended as it depends on Telstra's 4G network for critical driver communications. Regional train...