Area Code +31-20-(4490000...4499999) 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 : 4490000 Subscriber Number To : 4499999 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 : KPN 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-(4480000...4489999) next › : +31-20-(4500000...4509999) Dialling Instructions For trunk calls: 0 20 4490000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 20 4490000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4490000 ~ 4499999 (Count: 10,000) Example: +31-20-4490000 / 0031-20-4490000 (020-4490000 / 0-20-4490000) +31-20-4490001 / 0031-20-4490001 (020-4490001 / 0-20-4490001) +31-20-4490002 / 0031-20-4490002 (020-4490002 / 0-20-4490002) +31-20-4490003 / 0031-20-4490003 (020-4490003 / 0-20-4490003) +31-20-4490004 / 0031-20-4490004 (020-4490004 / 0-20-4490004) ...+31-20-xxxxxxx / 0031-20-xxxxxxx (020-xxxxxxx / 0-20-xxxxxxx) ...+31-20-4499995 / 0031-20-4499995 (020-4499995 / 0-20-4499995) +31-20-4499996 / 0031-20-4499996 (020-4499996 / 0-20-4499996) +31-20-4499997 / 0031-20-4499997 (020-4499997 / 0-20-4499997) +31-20-4499998 / 0031-20-4499998 (020-4499998 / 0-20-4499998) +31-20-4499999 / 0031-20-4499999 (020-4499999 / 0-20-4499999)