Area Code +31-50-(8530000...8539999) 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 : 8530000 Subscriber Number To : 8539999 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-(8510000...8519999) next › : +31-50-(8550000...8559999) Dialling Instructions For trunk calls: 0 50 8530000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 50 8530000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8530000 ~ 8539999 (Count: 10,000) Example: +31-50-8530000 / 0031-50-8530000 (050-8530000 / 0-50-8530000) +31-50-8530001 / 0031-50-8530001 (050-8530001 / 0-50-8530001) +31-50-8530002 / 0031-50-8530002 (050-8530002 / 0-50-8530002) +31-50-8530003 / 0031-50-8530003 (050-8530003 / 0-50-8530003) +31-50-8530004 / 0031-50-8530004 (050-8530004 / 0-50-8530004) ...+31-50-xxxxxxx / 0031-50-xxxxxxx (050-xxxxxxx / 0-50-xxxxxxx) ...+31-50-8539995 / 0031-50-8539995 (050-8539995 / 0-50-8539995) +31-50-8539996 / 0031-50-8539996 (050-8539996 / 0-50-8539996) +31-50-8539997 / 0031-50-8539997 (050-8539997 / 0-50-8539997) +31-50-8539998 / 0031-50-8539998 (050-8539998 / 0-50-8539998) +31-50-8539999 / 0031-50-8539999 (050-8539999 / 0-50-8539999)