Area Code +31-23-(2020000...2029999) 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 : 2020000 Subscriber Number To : 2029999 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-(2012000...2012999) next › : +31-23-(2030000...2039999) Dialling Instructions For trunk calls: 0 23 2020000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 23 2020000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2020000 ~ 2029999 (Count: 10,000) Example: +31-23-2020000 / 0031-23-2020000 (023-2020000 / 0-23-2020000) +31-23-2020001 / 0031-23-2020001 (023-2020001 / 0-23-2020001) +31-23-2020002 / 0031-23-2020002 (023-2020002 / 0-23-2020002) +31-23-2020003 / 0031-23-2020003 (023-2020003 / 0-23-2020003) +31-23-2020004 / 0031-23-2020004 (023-2020004 / 0-23-2020004) ...+31-23-xxxxxxx / 0031-23-xxxxxxx (023-xxxxxxx / 0-23-xxxxxxx) ...+31-23-2029995 / 0031-23-2029995 (023-2029995 / 0-23-2029995) +31-23-2029996 / 0031-23-2029996 (023-2029996 / 0-23-2029996) +31-23-2029997 / 0031-23-2029997 (023-2029997 / 0-23-2029997) +31-23-2029998 / 0031-23-2029998 (023-2029998 / 0-23-2029998) +31-23-2029999 / 0031-23-2029999 (023-2029999 / 0-23-2029999)
