Area Code +31-50-(8000000...8009999) 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 : 8000000 Subscriber Number To : 8009999 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 : BT NEDERLAND N.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-(7999000...7999999) next › : +31-50-(8010000...8010999) Dialling Instructions For trunk calls: 0 50 8000000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 50 8000000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8000000 ~ 8009999 (Count: 10,000) Example: +31-50-8000000 / 0031-50-8000000 (050-8000000 / 0-50-8000000) +31-50-8000001 / 0031-50-8000001 (050-8000001 / 0-50-8000001) +31-50-8000002 / 0031-50-8000002 (050-8000002 / 0-50-8000002) +31-50-8000003 / 0031-50-8000003 (050-8000003 / 0-50-8000003) +31-50-8000004 / 0031-50-8000004 (050-8000004 / 0-50-8000004) ...+31-50-xxxxxxx / 0031-50-xxxxxxx (050-xxxxxxx / 0-50-xxxxxxx) ...+31-50-8009995 / 0031-50-8009995 (050-8009995 / 0-50-8009995) +31-50-8009996 / 0031-50-8009996 (050-8009996 / 0-50-8009996) +31-50-8009997 / 0031-50-8009997 (050-8009997 / 0-50-8009997) +31-50-8009998 / 0031-50-8009998 (050-8009998 / 0-50-8009998) +31-50-8009999 / 0031-50-8009999 (050-8009999 / 0-50-8009999)