Area Code +31-172-(240000...240999) 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 : 240000 Subscriber Number To : 240999 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-(239000...239999) next › : +31-172-(241000...241999) Dialling Instructions For trunk calls: 0 172 240000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 172 240000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 240000 ~ 240999 (Count: 1,000) Example: +31-172-240000 / 0031-172-240000 (0172-240000 / 0-172-240000) +31-172-240001 / 0031-172-240001 (0172-240001 / 0-172-240001) +31-172-240002 / 0031-172-240002 (0172-240002 / 0-172-240002) +31-172-240003 / 0031-172-240003 (0172-240003 / 0-172-240003) +31-172-240004 / 0031-172-240004 (0172-240004 / 0-172-240004) ...+31-172-xxxxxx / 0031-172-xxxxxx (0172-xxxxxx / 0-172-xxxxxx) ...+31-172-240995 / 0031-172-240995 (0172-240995 / 0-172-240995) +31-172-240996 / 0031-172-240996 (0172-240996 / 0-172-240996) +31-172-240997 / 0031-172-240997 (0172-240997 / 0-172-240997) +31-172-240998 / 0031-172-240998 (0172-240998 / 0-172-240998) +31-172-240999 / 0031-172-240999 (0172-240999 / 0-172-240999)