Area Code +64-9-(3780000...3789999) located in Auckland, Auckland (AUK), more detail is as below. Place International Dialing Code : 64 International Prefix : 00 National Prefix : 0 National Destination Code : 9 Subscriber Number From : 3780000 Subscriber Number To : 3789999 National Destination Code Length : 1 Uses National Destination Code : Yes National Significant Number Length : 8 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Telecom New Zealand Limited Click here to buy New Zealand Area Code Database Other Information Language Code : en (English) Country Number : 554 (New Zealand) Country Code : NZ (New Zealand) Region Code : AUK Region Name : Auckland City : Auckland Timezone : Pacific/Auckland Coordinated Universal Time : +12:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : -36.8500 Longitude : 174.7600 ‹ previous : +64-9-(3770000...3779999) next › : +64-9-(3790000...3799999) Dialling Instructions For trunk calls: 0 9 3780000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 64 9 3780000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3780000 ~ 3789999 (Count: 10,000) Example: +64-9-3780000 / 0064-9-3780000 (09-3780000 / 0-9-3780000) +64-9-3780001 / 0064-9-3780001 (09-3780001 / 0-9-3780001) +64-9-3780002 / 0064-9-3780002 (09-3780002 / 0-9-3780002) +64-9-3780003 / 0064-9-3780003 (09-3780003 / 0-9-3780003) +64-9-3780004 / 0064-9-3780004 (09-3780004 / 0-9-3780004) ...+64-9-xxxxxxx / 0064-9-xxxxxxx (09-xxxxxxx / 0-9-xxxxxxx) ...+64-9-3789995 / 0064-9-3789995 (09-3789995 / 0-9-3789995) +64-9-3789996 / 0064-9-3789996 (09-3789996 / 0-9-3789996) +64-9-3789997 / 0064-9-3789997 (09-3789997 / 0-9-3789997) +64-9-3789998 / 0064-9-3789998 (09-3789998 / 0-9-3789998) +64-9-3789999 / 0064-9-3789999 (09-3789999 / 0-9-3789999)