Area Code +31-10-(2230000...2239999) 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 : 2230000 Subscriber Number To : 2239999 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 : KPN 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-(2220000...2229999) next › : +31-10-(2240000...2249999) Dialling Instructions For trunk calls: 0 10 2230000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 10 2230000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2230000 ~ 2239999 (Count: 10,000) Example: +31-10-2230000 / 0031-10-2230000 (010-2230000 / 0-10-2230000) +31-10-2230001 / 0031-10-2230001 (010-2230001 / 0-10-2230001) +31-10-2230002 / 0031-10-2230002 (010-2230002 / 0-10-2230002) +31-10-2230003 / 0031-10-2230003 (010-2230003 / 0-10-2230003) +31-10-2230004 / 0031-10-2230004 (010-2230004 / 0-10-2230004) ...+31-10-xxxxxxx / 0031-10-xxxxxxx (010-xxxxxxx / 0-10-xxxxxxx) ...+31-10-2239995 / 0031-10-2239995 (010-2239995 / 0-10-2239995) +31-10-2239996 / 0031-10-2239996 (010-2239996 / 0-10-2239996) +31-10-2239997 / 0031-10-2239997 (010-2239997 / 0-10-2239997) +31-10-2239998 / 0031-10-2239998 (010-2239998 / 0-10-2239998) +31-10-2239999 / 0031-10-2239999 (010-2239999 / 0-10-2239999)