Area Code +31-20-(7403000...7403999) 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 : 7403000 Subscriber Number To : 7403999 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 : I4IP 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-(7402000...7402999) next › : +31-20-(7450000...7459999) Dialling Instructions For trunk calls: 0 20 7403000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 20 7403000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7403000 ~ 7403999 (Count: 1,000) Example: +31-20-7403000 / 0031-20-7403000 (020-7403000 / 0-20-7403000) +31-20-7403001 / 0031-20-7403001 (020-7403001 / 0-20-7403001) +31-20-7403002 / 0031-20-7403002 (020-7403002 / 0-20-7403002) +31-20-7403003 / 0031-20-7403003 (020-7403003 / 0-20-7403003) +31-20-7403004 / 0031-20-7403004 (020-7403004 / 0-20-7403004) ...+31-20-xxxxxxx / 0031-20-xxxxxxx (020-xxxxxxx / 0-20-xxxxxxx) ...+31-20-7403995 / 0031-20-7403995 (020-7403995 / 0-20-7403995) +31-20-7403996 / 0031-20-7403996 (020-7403996 / 0-20-7403996) +31-20-7403997 / 0031-20-7403997 (020-7403997 / 0-20-7403997) +31-20-7403998 / 0031-20-7403998 (020-7403998 / 0-20-7403998) +31-20-7403999 / 0031-20-7403999 (020-7403999 / 0-20-7403999)