An advocacy group has utilised New Zealand's biggest stage - an All Blacks test at Eden Park - to call for the government to allow more refugees into the country.

ActionStation arranged for a plane to fly over the stadium prior to kickoff of the game against Wales, towing a banner which read "it's time to double the refugee quota".

The stunt coincides with the lead-up to Refugee Day on June 20, which is a response to the estimated 4.5 million refugees who have fled war-torn Syria in the past four years.

"Our message is that it is time - long past time - for New Zealand to do our small part to respond to what many have dubbed the 'worst humanitarian crisis of our time' by doubling New Zealand's refugee quota," said campaign director Laura O'Connell Rapira.