Area Code +64-7-(8580000...8589999) located in Hamilton, Waikato (WKO), more detail is as below. Place International Dialing Code : 64 International Prefix : 00 National Prefix : 0 National Destination Code : 7 Subscriber Number From : 8580000 Subscriber Number To : 8589999 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 : WKO Region Name : Waikato City : Hamilton Timezone : Pacific/Auckland Coordinated Universal Time : +12:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : -37.7900 Longitude : 175.2800 ‹ previous : +64-7-(8570000...8579999) next › : +64-7-(8590000...8599999) Dialling Instructions For trunk calls: 0 7 8580000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 64 7 8580000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8580000 ~ 8589999 (Count: 10,000) Example: +64-7-8580000 / 0064-7-8580000 (07-8580000 / 0-7-8580000) +64-7-8580001 / 0064-7-8580001 (07-8580001 / 0-7-8580001) +64-7-8580002 / 0064-7-8580002 (07-8580002 / 0-7-8580002) +64-7-8580003 / 0064-7-8580003 (07-8580003 / 0-7-8580003) +64-7-8580004 / 0064-7-8580004 (07-8580004 / 0-7-8580004) ...+64-7-xxxxxxx / 0064-7-xxxxxxx (07-xxxxxxx / 0-7-xxxxxxx) ...+64-7-8589995 / 0064-7-8589995 (07-8589995 / 0-7-8589995) +64-7-8589996 / 0064-7-8589996 (07-8589996 / 0-7-8589996) +64-7-8589997 / 0064-7-8589997 (07-8589997 / 0-7-8589997) +64-7-8589998 / 0064-7-8589998 (07-8589998 / 0-7-8589998) +64-7-8589999 / 0064-7-8589999 (07-8589999 / 0-7-8589999)