More than one million people have subscribed to a 5G mobile contact in South Korea, meaning demand for the high-speed technology has easily outpaced the country’s adoption of 4G.
The government has said it took 69 days for the landmark to be reached.
That is much faster than the 80 days it took the last-generation, 4G, service to hit the same figure, in 2011.
The country’s networks claim to be the world’s first to have commercially launched 5G mobile phone networks.