Area Code +31-15-(7122000...7122999) 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 : 7122000 Subscriber Number To : 7122999 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 : Vodafone Libertel 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-(7110000...7119999) next › : +31-15-(7200000...7200999) Dialling Instructions For trunk calls: 0 15 7122000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 15 7122000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7122000 ~ 7122999 (Count: 1,000) Example: +31-15-7122000 / 0031-15-7122000 (015-7122000 / 0-15-7122000) +31-15-7122001 / 0031-15-7122001 (015-7122001 / 0-15-7122001) +31-15-7122002 / 0031-15-7122002 (015-7122002 / 0-15-7122002) +31-15-7122003 / 0031-15-7122003 (015-7122003 / 0-15-7122003) +31-15-7122004 / 0031-15-7122004 (015-7122004 / 0-15-7122004) ...+31-15-xxxxxxx / 0031-15-xxxxxxx (015-xxxxxxx / 0-15-xxxxxxx) ...+31-15-7122995 / 0031-15-7122995 (015-7122995 / 0-15-7122995) +31-15-7122996 / 0031-15-7122996 (015-7122996 / 0-15-7122996) +31-15-7122997 / 0031-15-7122997 (015-7122997 / 0-15-7122997) +31-15-7122998 / 0031-15-7122998 (015-7122998 / 0-15-7122998) +31-15-7122999 / 0031-15-7122999 (015-7122999 / 0-15-7122999)