Chorus is trailing behind other ultra-fast broadband network builders in speed tests, says TrueNet.
TrueNet, one of the broadband testing services endorsed by the Commerce Commission, measured fibre internet speeds during October from Chorus, Christchurch's Enable Networks and the central North Island's Ultra Fast Fibre.
This series of tests compared speed from the three network builders over two different ultra-fast broadband products presently available - the 30 megabits per second download service and the 100 megabits per second equivalent.
These fibre companies sell wholesale services to internet companies, which then sell them onto consumers.
TrueNet measured the proportion that each of the fibre companies' recorded better than 90 per cent of the advertised speeds for each of the different broadband products.