Area Code +31-10-(6100000...6100999) 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 : 6100000 Subscriber Number To : 6100999 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 : Orkutel 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-(6000000...6000999) next › : +31-10-(6310000...6310999) Dialling Instructions For trunk calls: 0 10 6100000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 10 6100000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6100000 ~ 6100999 (Count: 1,000) Example: +31-10-6100000 / 0031-10-6100000 (010-6100000 / 0-10-6100000) +31-10-6100001 / 0031-10-6100001 (010-6100001 / 0-10-6100001) +31-10-6100002 / 0031-10-6100002 (010-6100002 / 0-10-6100002) +31-10-6100003 / 0031-10-6100003 (010-6100003 / 0-10-6100003) +31-10-6100004 / 0031-10-6100004 (010-6100004 / 0-10-6100004) ...+31-10-xxxxxxx / 0031-10-xxxxxxx (010-xxxxxxx / 0-10-xxxxxxx) ...+31-10-6100995 / 0031-10-6100995 (010-6100995 / 0-10-6100995) +31-10-6100996 / 0031-10-6100996 (010-6100996 / 0-10-6100996) +31-10-6100997 / 0031-10-6100997 (010-6100997 / 0-10-6100997) +31-10-6100998 / 0031-10-6100998 (010-6100998 / 0-10-6100998) +31-10-6100999 / 0031-10-6100999 (010-6100999 / 0-10-6100999)