Area Code +31-50-(5470000...5479999) 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 : 5470000 Subscriber Number To : 5479999 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-(5440000...5449999) next › : +31-50-(5490000...5499999) Dialling Instructions For trunk calls: 0 50 5470000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 50 5470000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5470000 ~ 5479999 (Count: 10,000) Example: +31-50-5470000 / 0031-50-5470000 (050-5470000 / 0-50-5470000) +31-50-5470001 / 0031-50-5470001 (050-5470001 / 0-50-5470001) +31-50-5470002 / 0031-50-5470002 (050-5470002 / 0-50-5470002) +31-50-5470003 / 0031-50-5470003 (050-5470003 / 0-50-5470003) +31-50-5470004 / 0031-50-5470004 (050-5470004 / 0-50-5470004) ...+31-50-xxxxxxx / 0031-50-xxxxxxx (050-xxxxxxx / 0-50-xxxxxxx) ...+31-50-5479995 / 0031-50-5479995 (050-5479995 / 0-50-5479995) +31-50-5479996 / 0031-50-5479996 (050-5479996 / 0-50-5479996) +31-50-5479997 / 0031-50-5479997 (050-5479997 / 0-50-5479997) +31-50-5479998 / 0031-50-5479998 (050-5479998 / 0-50-5479998) +31-50-5479999 / 0031-50-5479999 (050-5479999 / 0-50-5479999)