Upstream traffic, which increases with higher use of applications such as video conferencing, across the country increased by 41 per cent today to 0.236Tbps.
The Auckland region saw a 61 per cent uplift in traffic, while the rest of the country increased 14 per cent.
"Mini-surges occurring every half-hour, seen in the second graph below, seemingly coincide with online video conferences starting."
The increase in traffic is expected as households across the country enter alert level 2 lockdown, with those in the Auckland region at alert level 3, Chorus said.
Technicians are using appropriate PPE when working in homes and businesses and are socially distancing themselves, the company added.
In Auckland, Chorus will pre-screen customers to check whether households have anyone with Covid-19 symptoms or who is a confirmed case. Technicians will only go into homes where customers are comfortable for them to attend.
"There is no congestion on the Chorus network."