The dominant telco in Australia, Telstra switched off 2G services in December 2016.
In a blog post, Nikos Katinakis, Telstra group executive Networks & IT, said on Wednesday that the company's 3G technology had been switched on in 2006.
"[It] was heralded at the time for its more reliable service, increased speeds and coverage, and what it enabled for customers and businesses on the go," Katinakis said.
The remainder of Katinakis' blog post was about the company's 5G technology which was launched in May this year.
"Telstra’s 5G technology is now available in selected sites within 10 cities around Australia, and over the next year we expect our coverage to expand to at least 35 Australian cities," he said.
"Our investment to bring 5G to Australia is significant, and forms part of our around $8 billion of spend in our mobile network over the last five years (to 30 June 2019) to enhance the capacity and reach it is providing."