Area Code +31-50-(3190000...3199999) 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 : 3190000 Subscriber Number To : 3199999 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-(3180000...3189999) next › : +31-50-(3200000...3200999) Dialling Instructions For trunk calls: 0 50 3190000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 50 3190000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3190000 ~ 3199999 (Count: 10,000) Example: +31-50-3190000 / 0031-50-3190000 (050-3190000 / 0-50-3190000) +31-50-3190001 / 0031-50-3190001 (050-3190001 / 0-50-3190001) +31-50-3190002 / 0031-50-3190002 (050-3190002 / 0-50-3190002) +31-50-3190003 / 0031-50-3190003 (050-3190003 / 0-50-3190003) +31-50-3190004 / 0031-50-3190004 (050-3190004 / 0-50-3190004) ...+31-50-xxxxxxx / 0031-50-xxxxxxx (050-xxxxxxx / 0-50-xxxxxxx) ...+31-50-3199995 / 0031-50-3199995 (050-3199995 / 0-50-3199995) +31-50-3199996 / 0031-50-3199996 (050-3199996 / 0-50-3199996) +31-50-3199997 / 0031-50-3199997 (050-3199997 / 0-50-3199997) +31-50-3199998 / 0031-50-3199998 (050-3199998 / 0-50-3199998) +31-50-3199999 / 0031-50-3199999 (050-3199999 / 0-50-3199999)