Total fixed line connections fell 8,000 to 1.27 million.
The network company said fixed wireless and satellite footprint expansion and its own fibre growth in greenfield developments was behind declining copper connections in non-ultrafast broadband zones, while other fibre companies were winning new connections in their own zones.
Chorus said the copper withdrawal programme resumed after a pause in the March quarter due to the cyclone, and said an increase in the number of technicians supported proactive fibre migration.
The company said 544 copper broadband cabinets no longer had active customers at the end of June, up from 330 cabinets three months before.
Copper services have stopped for 22,000 notified connections, and Chorus has kept an 88 per cent broadband retention rate across closed cabinets.
-BusinessDesk