Area Code +31-20-(5040000...5049999) 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 : 5040000 Subscriber Number To : 5049999 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-(5030000...5039999) next › : +31-20-(5050000...5050999) Dialling Instructions For trunk calls: 0 20 5040000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 20 5040000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5040000 ~ 5049999 (Count: 10,000) Example: +31-20-5040000 / 0031-20-5040000 (020-5040000 / 0-20-5040000) +31-20-5040001 / 0031-20-5040001 (020-5040001 / 0-20-5040001) +31-20-5040002 / 0031-20-5040002 (020-5040002 / 0-20-5040002) +31-20-5040003 / 0031-20-5040003 (020-5040003 / 0-20-5040003) +31-20-5040004 / 0031-20-5040004 (020-5040004 / 0-20-5040004) ...+31-20-xxxxxxx / 0031-20-xxxxxxx (020-xxxxxxx / 0-20-xxxxxxx) ...+31-20-5049995 / 0031-20-5049995 (020-5049995 / 0-20-5049995) +31-20-5049996 / 0031-20-5049996 (020-5049996 / 0-20-5049996) +31-20-5049997 / 0031-20-5049997 (020-5049997 / 0-20-5049997) +31-20-5049998 / 0031-20-5049998 (020-5049998 / 0-20-5049998) +31-20-5049999 / 0031-20-5049999 (020-5049999 / 0-20-5049999)