Area Code +31-20-(2320000...2329999) located in Amsterdam, Noord-Holland (NH), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 20 Subscriber Number From : 2320000 Subscriber Number To : 2329999 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 : Golden Hightech 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 : Amsterdam Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 52.3700 Longitude : 4.8900 ‹ previous : +31-20-(2310000...2319999) next › : +31-20-(2340000...2349999) Dialling Instructions For trunk calls: 0 20 2320000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 20 2320000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2320000 ~ 2329999 (Count: 10,000) Example: +31-20-2320000 / 0031-20-2320000 (020-2320000 / 0-20-2320000) +31-20-2320001 / 0031-20-2320001 (020-2320001 / 0-20-2320001) +31-20-2320002 / 0031-20-2320002 (020-2320002 / 0-20-2320002) +31-20-2320003 / 0031-20-2320003 (020-2320003 / 0-20-2320003) +31-20-2320004 / 0031-20-2320004 (020-2320004 / 0-20-2320004) ...+31-20-xxxxxxx / 0031-20-xxxxxxx (020-xxxxxxx / 0-20-xxxxxxx) ...+31-20-2329995 / 0031-20-2329995 (020-2329995 / 0-20-2329995) +31-20-2329996 / 0031-20-2329996 (020-2329996 / 0-20-2329996) +31-20-2329997 / 0031-20-2329997 (020-2329997 / 0-20-2329997) +31-20-2329998 / 0031-20-2329998 (020-2329998 / 0-20-2329998) +31-20-2329999 / 0031-20-2329999 (020-2329999 / 0-20-2329999)