0011 is the exit code for Australia. To make any international phone call from Australia, you need to start with these digits. [1] X Research source 64 is the country code for New Zealand. Anyone calling from any other country dials this after the exit code to reach New Zealand. [2] X Research source

The only exception is for some New Zealand cellular phone numbers, which can be up to nine digits long and thus “trick” you into thinking an area code is included. If your call does not go through, hang up and try again with 001164 2 followed by the number. 2 is the area code for all cellular phone in New Zealand.

Auckland: 9 Wellington: 4 Christchurch: 3 Hastings, Manawatu, Napier, New Plymouth, Palmerston North, Wairarapa, Wanganui: 6 Dunedin, Invercargill, Nelson, Queenstown, The South Island, Timaru: 3 Bay of Plenty, Hamilton, Rotorua, Tauranga: 7 Whangarei: 9

New Zealand is two hours ahead of Sydney, Melbourne, and Brisbane (which are on AEST). It is two and a half hours ahead of Adelaide (ACST), and four hours ahead of Perth (AWST). [4] X Research source New Zealand observes daylight savings time, but parts of Australia do not. If you are in Queensland, the Northern Territory, or the Australian Capital Territory, and you are calling between October and April, add one additional hour to find New Zealand time. [5] X Research source

Try to find a regular, non-toll-free number for that organization by searching online, or contact it by email.

Note that international calls are often significantly more expensive than local or in-country calls. If you call abroad frequently, ask about a plan with a reduced international rate.