Area Code +31-180-(310000...319999) located in Ridderkerk, Zuid-Holland (ZH), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 180 Subscriber Number From : 310000 Subscriber Number To : 319999 National Destination Code Length : 3 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 : Ridderkerk Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 51.8700 Longitude : 4.6000 ‹ previous : +31-180-(300000...309999) next › : +31-180-(320000...320999) Dialling Instructions For trunk calls: 0 180 310000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 180 310000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 310000 ~ 319999 (Count: 10,000) Example: +31-180-310000 / 0031-180-310000 (0180-310000 / 0-180-310000) +31-180-310001 / 0031-180-310001 (0180-310001 / 0-180-310001) +31-180-310002 / 0031-180-310002 (0180-310002 / 0-180-310002) +31-180-310003 / 0031-180-310003 (0180-310003 / 0-180-310003) +31-180-310004 / 0031-180-310004 (0180-310004 / 0-180-310004) ...+31-180-xxxxxx / 0031-180-xxxxxx (0180-xxxxxx / 0-180-xxxxxx) ...+31-180-319995 / 0031-180-319995 (0180-319995 / 0-180-319995) +31-180-319996 / 0031-180-319996 (0180-319996 / 0-180-319996) +31-180-319997 / 0031-180-319997 (0180-319997 / 0-180-319997) +31-180-319998 / 0031-180-319998 (0180-319998 / 0-180-319998) +31-180-319999 / 0031-180-319999 (0180-319999 / 0-180-319999)