Area Code +31-50-(5880000...5889999) 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 : 5880000 Subscriber Number To : 5889999 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-(5870000...5879999) next › : +31-50-(5890000...5899999) Dialling Instructions For trunk calls: 0 50 5880000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 50 5880000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5880000 ~ 5889999 (Count: 10,000) Example: +31-50-5880000 / 0031-50-5880000 (050-5880000 / 0-50-5880000) +31-50-5880001 / 0031-50-5880001 (050-5880001 / 0-50-5880001) +31-50-5880002 / 0031-50-5880002 (050-5880002 / 0-50-5880002) +31-50-5880003 / 0031-50-5880003 (050-5880003 / 0-50-5880003) +31-50-5880004 / 0031-50-5880004 (050-5880004 / 0-50-5880004) ...+31-50-xxxxxxx / 0031-50-xxxxxxx (050-xxxxxxx / 0-50-xxxxxxx) ...+31-50-5889995 / 0031-50-5889995 (050-5889995 / 0-50-5889995) +31-50-5889996 / 0031-50-5889996 (050-5889996 / 0-50-5889996) +31-50-5889997 / 0031-50-5889997 (050-5889997 / 0-50-5889997) +31-50-5889998 / 0031-50-5889998 (050-5889998 / 0-50-5889998) +31-50-5889999 / 0031-50-5889999 (050-5889999 / 0-50-5889999)