Area Code +31-50-(8510000...8519999) 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 : 8510000 Subscriber Number To : 8519999 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 : Ziggo 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-(8500000...8509999) next › : +31-50-(8530000...8539999) Dialling Instructions For trunk calls: 0 50 8510000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 50 8510000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8510000 ~ 8519999 (Count: 10,000) Example: +31-50-8510000 / 0031-50-8510000 (050-8510000 / 0-50-8510000) +31-50-8510001 / 0031-50-8510001 (050-8510001 / 0-50-8510001) +31-50-8510002 / 0031-50-8510002 (050-8510002 / 0-50-8510002) +31-50-8510003 / 0031-50-8510003 (050-8510003 / 0-50-8510003) +31-50-8510004 / 0031-50-8510004 (050-8510004 / 0-50-8510004) ...+31-50-xxxxxxx / 0031-50-xxxxxxx (050-xxxxxxx / 0-50-xxxxxxx) ...+31-50-8519995 / 0031-50-8519995 (050-8519995 / 0-50-8519995) +31-50-8519996 / 0031-50-8519996 (050-8519996 / 0-50-8519996) +31-50-8519997 / 0031-50-8519997 (050-8519997 / 0-50-8519997) +31-50-8519998 / 0031-50-8519998 (050-8519998 / 0-50-8519998) +31-50-8519999 / 0031-50-8519999 (050-8519999 / 0-50-8519999)