Area Code +31-20-(7220000...7220999) 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 : 7220000 Subscriber Number To : 7220999 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 : X2Com 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-(7210000...7219999) next › : +31-20-(7221000...7221999) Dialling Instructions For trunk calls: 0 20 7220000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 20 7220000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7220000 ~ 7220999 (Count: 1,000) Example: +31-20-7220000 / 0031-20-7220000 (020-7220000 / 0-20-7220000) +31-20-7220001 / 0031-20-7220001 (020-7220001 / 0-20-7220001) +31-20-7220002 / 0031-20-7220002 (020-7220002 / 0-20-7220002) +31-20-7220003 / 0031-20-7220003 (020-7220003 / 0-20-7220003) +31-20-7220004 / 0031-20-7220004 (020-7220004 / 0-20-7220004) ...+31-20-xxxxxxx / 0031-20-xxxxxxx (020-xxxxxxx / 0-20-xxxxxxx) ...+31-20-7220995 / 0031-20-7220995 (020-7220995 / 0-20-7220995) +31-20-7220996 / 0031-20-7220996 (020-7220996 / 0-20-7220996) +31-20-7220997 / 0031-20-7220997 (020-7220997 / 0-20-7220997) +31-20-7220998 / 0031-20-7220998 (020-7220998 / 0-20-7220998) +31-20-7220999 / 0031-20-7220999 (020-7220999 / 0-20-7220999)