Area Code +31-50-(5350000...5359999) 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 : 5350000 Subscriber Number To : 5359999 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-(5340000...5349999) next › : +31-50-(5370000...5379999) Dialling Instructions For trunk calls: 0 50 5350000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 50 5350000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5350000 ~ 5359999 (Count: 10,000) Example: +31-50-5350000 / 0031-50-5350000 (050-5350000 / 0-50-5350000) +31-50-5350001 / 0031-50-5350001 (050-5350001 / 0-50-5350001) +31-50-5350002 / 0031-50-5350002 (050-5350002 / 0-50-5350002) +31-50-5350003 / 0031-50-5350003 (050-5350003 / 0-50-5350003) +31-50-5350004 / 0031-50-5350004 (050-5350004 / 0-50-5350004) ...+31-50-xxxxxxx / 0031-50-xxxxxxx (050-xxxxxxx / 0-50-xxxxxxx) ...+31-50-5359995 / 0031-50-5359995 (050-5359995 / 0-50-5359995) +31-50-5359996 / 0031-50-5359996 (050-5359996 / 0-50-5359996) +31-50-5359997 / 0031-50-5359997 (050-5359997 / 0-50-5359997) +31-50-5359998 / 0031-50-5359998 (050-5359998 / 0-50-5359998) +31-50-5359999 / 0031-50-5359999 (050-5359999 / 0-50-5359999)