Toll-free and premium-rate calls
Toll-free numbers begin with 0508 or 0800, followed by usually six but sometimes seven digits. Premium-rate services use the code 0900 followed by five digits (some with six digits). Local-rate numbers, such as Internet access numbers, have the prefix 08xx, and are usually followed by five digits.

• 0508 Tollfree 
• 0800 Tollfree 
• 0900 Premium rate services

New Zealand-specific toll-free phone numbers can be accessed from any New Zealand landline, but you may find one or two that are not available from a mobile phone. In any case, 0508 and 0800 are the dedicated toll-free networks in New Zealand.
All paid-phone services (providers that issue goods or services to a consumer by charging the cost to their phone bill) start with the "0900" area code in New Zealand. Fees for paid-phone services are usually charged by the minute and rates can vary. 

Operator Service numbers
Numbers beginning with 01 are for operator services.

• 010 National Operator
• 0170 International Operator
• 0172 International Directory Service
• 018 National Directory Service
• 0161  
• 059  

Special numbers,  directory assisted calls, calling card access numbers, audio conferencing calls, will be charged at the applicable per minute rate.