Area Code +31-50-(2800000...2809999) 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 : 2800000 Subscriber Number To : 2809999 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-(2600000...2609999) next › : +31-50-(3000000...3009999) Dialling Instructions For trunk calls: 0 50 2800000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 50 2800000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2800000 ~ 2809999 (Count: 10,000) Example: +31-50-2800000 / 0031-50-2800000 (050-2800000 / 0-50-2800000) +31-50-2800001 / 0031-50-2800001 (050-2800001 / 0-50-2800001) +31-50-2800002 / 0031-50-2800002 (050-2800002 / 0-50-2800002) +31-50-2800003 / 0031-50-2800003 (050-2800003 / 0-50-2800003) +31-50-2800004 / 0031-50-2800004 (050-2800004 / 0-50-2800004) ...+31-50-xxxxxxx / 0031-50-xxxxxxx (050-xxxxxxx / 0-50-xxxxxxx) ...+31-50-2809995 / 0031-50-2809995 (050-2809995 / 0-50-2809995) +31-50-2809996 / 0031-50-2809996 (050-2809996 / 0-50-2809996) +31-50-2809997 / 0031-50-2809997 (050-2809997 / 0-50-2809997) +31-50-2809998 / 0031-50-2809998 (050-2809998 / 0-50-2809998) +31-50-2809999 / 0031-50-2809999 (050-2809999 / 0-50-2809999)