Area Code +31-15-(7800000...7809999) 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 : 7800000 Subscriber Number To : 7809999 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 : Edutel 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-(7770000...7779999) next › : +31-15-(7810000...7810999) Dialling Instructions For trunk calls: 0 15 7800000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 15 7800000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7800000 ~ 7809999 (Count: 10,000) Example: +31-15-7800000 / 0031-15-7800000 (015-7800000 / 0-15-7800000) +31-15-7800001 / 0031-15-7800001 (015-7800001 / 0-15-7800001) +31-15-7800002 / 0031-15-7800002 (015-7800002 / 0-15-7800002) +31-15-7800003 / 0031-15-7800003 (015-7800003 / 0-15-7800003) +31-15-7800004 / 0031-15-7800004 (015-7800004 / 0-15-7800004) ...+31-15-xxxxxxx / 0031-15-xxxxxxx (015-xxxxxxx / 0-15-xxxxxxx) ...+31-15-7809995 / 0031-15-7809995 (015-7809995 / 0-15-7809995) +31-15-7809996 / 0031-15-7809996 (015-7809996 / 0-15-7809996) +31-15-7809997 / 0031-15-7809997 (015-7809997 / 0-15-7809997) +31-15-7809998 / 0031-15-7809998 (015-7809998 / 0-15-7809998) +31-15-7809999 / 0031-15-7809999 (015-7809999 / 0-15-7809999)