Area Code +31-223-(711000...711999) located in Den Helder, Noord-Holland (NH), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 223 Subscriber Number From : 711000 Subscriber Number To : 711999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Verizon Nederland B.V. Click here to buy Netherlands Area Code Database Other Information Language Code : nl (Dutch) Country Number : 528 (Netherlands) Country Code : NL (Netherlands) Region Code : NH Region Name : Noord-Holland City : Den Helder Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 52.9600 Longitude : 4.7600 ‹ previous : +31-223-(708000...708999) next › : +31-223-(712000...712999) Dialling Instructions For trunk calls: 0 223 711000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 223 711000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 711000 ~ 711999 (Count: 1,000) Example: +31-223-711000 / 0031-223-711000 (0223-711000 / 0-223-711000) +31-223-711001 / 0031-223-711001 (0223-711001 / 0-223-711001) +31-223-711002 / 0031-223-711002 (0223-711002 / 0-223-711002) +31-223-711003 / 0031-223-711003 (0223-711003 / 0-223-711003) +31-223-711004 / 0031-223-711004 (0223-711004 / 0-223-711004) ...+31-223-xxxxxx / 0031-223-xxxxxx (0223-xxxxxx / 0-223-xxxxxx) ...+31-223-711995 / 0031-223-711995 (0223-711995 / 0-223-711995) +31-223-711996 / 0031-223-711996 (0223-711996 / 0-223-711996) +31-223-711997 / 0031-223-711997 (0223-711997 / 0-223-711997) +31-223-711998 / 0031-223-711998 (0223-711998 / 0-223-711998) +31-223-711999 / 0031-223-711999 (0223-711999 / 0-223-711999)