Area Code +31-15-(8300000...8300999) located in Delft, Zuid-Holland (ZH), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 15 Subscriber Number From : 8300000 Subscriber Number To : 8300999 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 : Redworks 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 : ZH Region Name : Zuid-Holland City : Delft Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 52.0100 Longitude : 4.3600 ‹ previous : +31-15-(8209000...8209999) next › : +31-15-(8440000...8449999) Dialling Instructions For trunk calls: 0 15 8300000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 15 8300000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8300000 ~ 8300999 (Count: 1,000) Example: +31-15-8300000 / 0031-15-8300000 (015-8300000 / 0-15-8300000) +31-15-8300001 / 0031-15-8300001 (015-8300001 / 0-15-8300001) +31-15-8300002 / 0031-15-8300002 (015-8300002 / 0-15-8300002) +31-15-8300003 / 0031-15-8300003 (015-8300003 / 0-15-8300003) +31-15-8300004 / 0031-15-8300004 (015-8300004 / 0-15-8300004) ...+31-15-xxxxxxx / 0031-15-xxxxxxx (015-xxxxxxx / 0-15-xxxxxxx) ...+31-15-8300995 / 0031-15-8300995 (015-8300995 / 0-15-8300995) +31-15-8300996 / 0031-15-8300996 (015-8300996 / 0-15-8300996) +31-15-8300997 / 0031-15-8300997 (015-8300997 / 0-15-8300997) +31-15-8300998 / 0031-15-8300998 (015-8300998 / 0-15-8300998) +31-15-8300999 / 0031-15-8300999 (015-8300999 / 0-15-8300999)