Telstra leads mobile site growth as 5G strategies diverge by region
Telstra continued to operate Australia's largest mobile network by site count in January 2026, while also adding more sites than Optus and TPG Telecom over the preceding year, according to the ACCC's Mobile Infrastructure Report 2026. Telstra had 12,175 mobile sites as at 31 January, compared with 9,499 for Optus and 5,262 for TPG. Telstra added 408 sites during the year, while Optus added 108 and TPG added 55. TPG also had access to 2,549 sites through its Multi-Operator Core Network (MOCN) arrangement wit