Area Code +31-15-(7640000...7640999) 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 : 7640000 Subscriber Number To : 7640999 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 : VoipQ 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-(7630000...7630999) next › : +31-15-(7650000...7659999) Dialling Instructions For trunk calls: 0 15 7640000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 15 7640000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7640000 ~ 7640999 (Count: 1,000) Example: +31-15-7640000 / 0031-15-7640000 (015-7640000 / 0-15-7640000) +31-15-7640001 / 0031-15-7640001 (015-7640001 / 0-15-7640001) +31-15-7640002 / 0031-15-7640002 (015-7640002 / 0-15-7640002) +31-15-7640003 / 0031-15-7640003 (015-7640003 / 0-15-7640003) +31-15-7640004 / 0031-15-7640004 (015-7640004 / 0-15-7640004) ...+31-15-xxxxxxx / 0031-15-xxxxxxx (015-xxxxxxx / 0-15-xxxxxxx) ...+31-15-7640995 / 0031-15-7640995 (015-7640995 / 0-15-7640995) +31-15-7640996 / 0031-15-7640996 (015-7640996 / 0-15-7640996) +31-15-7640997 / 0031-15-7640997 (015-7640997 / 0-15-7640997) +31-15-7640998 / 0031-15-7640998 (015-7640998 / 0-15-7640998) +31-15-7640999 / 0031-15-7640999 (015-7640999 / 0-15-7640999)