Area Code +31-50-(3070000...3070999) 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 : 3070000 Subscriber Number To : 3070999 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 : Belcentrale.nl 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-(3060000...3069999) next › : +31-50-(3080000...3089999) Dialling Instructions For trunk calls: 0 50 3070000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 50 3070000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3070000 ~ 3070999 (Count: 1,000) Example: +31-50-3070000 / 0031-50-3070000 (050-3070000 / 0-50-3070000) +31-50-3070001 / 0031-50-3070001 (050-3070001 / 0-50-3070001) +31-50-3070002 / 0031-50-3070002 (050-3070002 / 0-50-3070002) +31-50-3070003 / 0031-50-3070003 (050-3070003 / 0-50-3070003) +31-50-3070004 / 0031-50-3070004 (050-3070004 / 0-50-3070004) ...+31-50-xxxxxxx / 0031-50-xxxxxxx (050-xxxxxxx / 0-50-xxxxxxx) ...+31-50-3070995 / 0031-50-3070995 (050-3070995 / 0-50-3070995) +31-50-3070996 / 0031-50-3070996 (050-3070996 / 0-50-3070996) +31-50-3070997 / 0031-50-3070997 (050-3070997 / 0-50-3070997) +31-50-3070998 / 0031-50-3070998 (050-3070998 / 0-50-3070998) +31-50-3070999 / 0031-50-3070999 (050-3070999 / 0-50-3070999)