Area Code +31-50-(5860000...5869999) 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 : 5860000 Subscriber Number To : 5869999 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-(5850000...5859999) next › : +31-50-(5870000...5879999) Dialling Instructions For trunk calls: 0 50 5860000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 50 5860000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5860000 ~ 5869999 (Count: 10,000) Example: +31-50-5860000 / 0031-50-5860000 (050-5860000 / 0-50-5860000) +31-50-5860001 / 0031-50-5860001 (050-5860001 / 0-50-5860001) +31-50-5860002 / 0031-50-5860002 (050-5860002 / 0-50-5860002) +31-50-5860003 / 0031-50-5860003 (050-5860003 / 0-50-5860003) +31-50-5860004 / 0031-50-5860004 (050-5860004 / 0-50-5860004) ...+31-50-xxxxxxx / 0031-50-xxxxxxx (050-xxxxxxx / 0-50-xxxxxxx) ...+31-50-5869995 / 0031-50-5869995 (050-5869995 / 0-50-5869995) +31-50-5869996 / 0031-50-5869996 (050-5869996 / 0-50-5869996) +31-50-5869997 / 0031-50-5869997 (050-5869997 / 0-50-5869997) +31-50-5869998 / 0031-50-5869998 (050-5869998 / 0-50-5869998) +31-50-5869999 / 0031-50-5869999 (050-5869999 / 0-50-5869999)