Area Code +31-50-(3080000...3089999) 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 : 3080000 Subscriber Number To : 3089999 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-(3070000...3070999) next › : +31-50-(3090000...3099999) Dialling Instructions For trunk calls: 0 50 3080000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 50 3080000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3080000 ~ 3089999 (Count: 10,000) Example: +31-50-3080000 / 0031-50-3080000 (050-3080000 / 0-50-3080000) +31-50-3080001 / 0031-50-3080001 (050-3080001 / 0-50-3080001) +31-50-3080002 / 0031-50-3080002 (050-3080002 / 0-50-3080002) +31-50-3080003 / 0031-50-3080003 (050-3080003 / 0-50-3080003) +31-50-3080004 / 0031-50-3080004 (050-3080004 / 0-50-3080004) ...+31-50-xxxxxxx / 0031-50-xxxxxxx (050-xxxxxxx / 0-50-xxxxxxx) ...+31-50-3089995 / 0031-50-3089995 (050-3089995 / 0-50-3089995) +31-50-3089996 / 0031-50-3089996 (050-3089996 / 0-50-3089996) +31-50-3089997 / 0031-50-3089997 (050-3089997 / 0-50-3089997) +31-50-3089998 / 0031-50-3089998 (050-3089998 / 0-50-3089998) +31-50-3089999 / 0031-50-3089999 (050-3089999 / 0-50-3089999)