Area Code +31-172-(231000...231999) located in Alphen aan den Rijn, Zuid-Holland (ZH), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 172 Subscriber Number From : 231000 Subscriber Number To : 231999 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 : Alphen aan den Rijn Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 52.1300 Longitude : 4.6600 ‹ previous : +31-172-(230000...230999) next › : +31-172-(232000...232999) Dialling Instructions For trunk calls: 0 172 231000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 172 231000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 231000 ~ 231999 (Count: 1,000) Example: +31-172-231000 / 0031-172-231000 (0172-231000 / 0-172-231000) +31-172-231001 / 0031-172-231001 (0172-231001 / 0-172-231001) +31-172-231002 / 0031-172-231002 (0172-231002 / 0-172-231002) +31-172-231003 / 0031-172-231003 (0172-231003 / 0-172-231003) +31-172-231004 / 0031-172-231004 (0172-231004 / 0-172-231004) ...+31-172-xxxxxx / 0031-172-xxxxxx (0172-xxxxxx / 0-172-xxxxxx) ...+31-172-231995 / 0031-172-231995 (0172-231995 / 0-172-231995) +31-172-231996 / 0031-172-231996 (0172-231996 / 0-172-231996) +31-172-231997 / 0031-172-231997 (0172-231997 / 0-172-231997) +31-172-231998 / 0031-172-231998 (0172-231998 / 0-172-231998) +31-172-231999 / 0031-172-231999 (0172-231999 / 0-172-231999)
