Area Code +31-20-(2010000...2019999) 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 : 2010000 Subscriber Number To : 2019999 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 : BT NEDERLAND N.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-(2000000...2009999) next › : +31-20-(2020000...2029999) Dialling Instructions For trunk calls: 0 20 2010000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 20 2010000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2010000 ~ 2019999 (Count: 10,000) Example: +31-20-2010000 / 0031-20-2010000 (020-2010000 / 0-20-2010000) +31-20-2010001 / 0031-20-2010001 (020-2010001 / 0-20-2010001) +31-20-2010002 / 0031-20-2010002 (020-2010002 / 0-20-2010002) +31-20-2010003 / 0031-20-2010003 (020-2010003 / 0-20-2010003) +31-20-2010004 / 0031-20-2010004 (020-2010004 / 0-20-2010004) ...+31-20-xxxxxxx / 0031-20-xxxxxxx (020-xxxxxxx / 0-20-xxxxxxx) ...+31-20-2019995 / 0031-20-2019995 (020-2019995 / 0-20-2019995) +31-20-2019996 / 0031-20-2019996 (020-2019996 / 0-20-2019996) +31-20-2019997 / 0031-20-2019997 (020-2019997 / 0-20-2019997) +31-20-2019998 / 0031-20-2019998 (020-2019998 / 0-20-2019998) +31-20-2019999 / 0031-20-2019999 (020-2019999 / 0-20-2019999)