I do not really need to know the number beforehand,
just worried that i might not be able to get a 2degrees SIM card at the airport.
Anyway see how it goes, maybe will check on the Dick smith shop in the airport.
Stix: Anyway in general terms I think the best IDD rates from an NZ prepay mobile will probably be using a Voda connection and a V8 calling card (http://www.v8phonecard.co.nz/ratev8.html) - I see they are charging 3.9c/min with a 19 cent flagfall/connect fee.
Or alternately SuperBuzz calling card that operates in a similiar way from a Voda NZ mobile (no connect fee and a low per min rate)
You can buy online I think?