Area Code +31-50-(5280000...5289999) located in Groningen, Groningen (GR), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 50 Subscriber Number From : 5280000 Subscriber Number To : 5289999 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 : GR Region Name : Groningen City : Groningen Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 53.2100 Longitude : 6.5700 ‹ previous : +31-50-(5270000...5279999) next › : +31-50-(5290000...5299999) Dialling Instructions For trunk calls: 0 50 5280000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 50 5280000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5280000 ~ 5289999 (Count: 10,000) Example: +31-50-5280000 / 0031-50-5280000 (050-5280000 / 0-50-5280000) +31-50-5280001 / 0031-50-5280001 (050-5280001 / 0-50-5280001) +31-50-5280002 / 0031-50-5280002 (050-5280002 / 0-50-5280002) +31-50-5280003 / 0031-50-5280003 (050-5280003 / 0-50-5280003) +31-50-5280004 / 0031-50-5280004 (050-5280004 / 0-50-5280004) ...+31-50-xxxxxxx / 0031-50-xxxxxxx (050-xxxxxxx / 0-50-xxxxxxx) ...+31-50-5289995 / 0031-50-5289995 (050-5289995 / 0-50-5289995) +31-50-5289996 / 0031-50-5289996 (050-5289996 / 0-50-5289996) +31-50-5289997 / 0031-50-5289997 (050-5289997 / 0-50-5289997) +31-50-5289998 / 0031-50-5289998 (050-5289998 / 0-50-5289998) +31-50-5289999 / 0031-50-5289999 (050-5289999 / 0-50-5289999)