Area Code +31-10-(2500000...2509999) located in Rotterdam, Zuid-Holland (ZH), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 10 Subscriber Number From : 2500000 Subscriber Number To : 2509999 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 : Orange Business Netherlands 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 : Rotterdam Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 51.9200 Longitude : 4.4700 ‹ previous : +31-10-(2490000...2499999) next › : +31-10-(2510000...2519999) Dialling Instructions For trunk calls: 0 10 2500000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 10 2500000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2500000 ~ 2509999 (Count: 10,000) Example: +31-10-2500000 / 0031-10-2500000 (010-2500000 / 0-10-2500000) +31-10-2500001 / 0031-10-2500001 (010-2500001 / 0-10-2500001) +31-10-2500002 / 0031-10-2500002 (010-2500002 / 0-10-2500002) +31-10-2500003 / 0031-10-2500003 (010-2500003 / 0-10-2500003) +31-10-2500004 / 0031-10-2500004 (010-2500004 / 0-10-2500004) ...+31-10-xxxxxxx / 0031-10-xxxxxxx (010-xxxxxxx / 0-10-xxxxxxx) ...+31-10-2509995 / 0031-10-2509995 (010-2509995 / 0-10-2509995) +31-10-2509996 / 0031-10-2509996 (010-2509996 / 0-10-2509996) +31-10-2509997 / 0031-10-2509997 (010-2509997 / 0-10-2509997) +31-10-2509998 / 0031-10-2509998 (010-2509998 / 0-10-2509998) +31-10-2509999 / 0031-10-2509999 (010-2509999 / 0-10-2509999)