Area Code +31-23-(8440000...8449999) located in Haarlem, Noord-Holland (NH), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 23 Subscriber Number From : 8440000 Subscriber Number To : 8449999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : UPC 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 : Haarlem Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 52.3800 Longitude : 4.6400 ‹ previous : +31-23-(8330000...8339999) next › : +31-23-(8550000...8559999) Dialling Instructions For trunk calls: 0 23 8440000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 23 8440000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8440000 ~ 8449999 (Count: 10,000) Example: +31-23-8440000 / 0031-23-8440000 (023-8440000 / 0-23-8440000) +31-23-8440001 / 0031-23-8440001 (023-8440001 / 0-23-8440001) +31-23-8440002 / 0031-23-8440002 (023-8440002 / 0-23-8440002) +31-23-8440003 / 0031-23-8440003 (023-8440003 / 0-23-8440003) +31-23-8440004 / 0031-23-8440004 (023-8440004 / 0-23-8440004) ...+31-23-xxxxxxx / 0031-23-xxxxxxx (023-xxxxxxx / 0-23-xxxxxxx) ...+31-23-8449995 / 0031-23-8449995 (023-8449995 / 0-23-8449995) +31-23-8449996 / 0031-23-8449996 (023-8449996 / 0-23-8449996) +31-23-8449997 / 0031-23-8449997 (023-8449997 / 0-23-8449997) +31-23-8449998 / 0031-23-8449998 (023-8449998 / 0-23-8449998) +31-23-8449999 / 0031-23-8449999 (023-8449999 / 0-23-8449999)
