Area Code +31-10-(7231000...7231999) 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 : 7231000 Subscriber Number To : 7231999 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 : ACM 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-(7230000...7230999) next › : +31-10-(7232000...7232999) Dialling Instructions For trunk calls: 0 10 7231000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 10 7231000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7231000 ~ 7231999 (Count: 1,000) Example: +31-10-7231000 / 0031-10-7231000 (010-7231000 / 0-10-7231000) +31-10-7231001 / 0031-10-7231001 (010-7231001 / 0-10-7231001) +31-10-7231002 / 0031-10-7231002 (010-7231002 / 0-10-7231002) +31-10-7231003 / 0031-10-7231003 (010-7231003 / 0-10-7231003) +31-10-7231004 / 0031-10-7231004 (010-7231004 / 0-10-7231004) ...+31-10-xxxxxxx / 0031-10-xxxxxxx (010-xxxxxxx / 0-10-xxxxxxx) ...+31-10-7231995 / 0031-10-7231995 (010-7231995 / 0-10-7231995) +31-10-7231996 / 0031-10-7231996 (010-7231996 / 0-10-7231996) +31-10-7231997 / 0031-10-7231997 (010-7231997 / 0-10-7231997) +31-10-7231998 / 0031-10-7231998 (010-7231998 / 0-10-7231998) +31-10-7231999 / 0031-10-7231999 (010-7231999 / 0-10-7231999)