Area Code +31-50-(3620000...3629999) 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 : 3620000 Subscriber Number To : 3629999 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-(3610000...3619999) next › : +31-50-(3630000...3639999) Dialling Instructions For trunk calls: 0 50 3620000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 50 3620000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3620000 ~ 3629999 (Count: 10,000) Example: +31-50-3620000 / 0031-50-3620000 (050-3620000 / 0-50-3620000) +31-50-3620001 / 0031-50-3620001 (050-3620001 / 0-50-3620001) +31-50-3620002 / 0031-50-3620002 (050-3620002 / 0-50-3620002) +31-50-3620003 / 0031-50-3620003 (050-3620003 / 0-50-3620003) +31-50-3620004 / 0031-50-3620004 (050-3620004 / 0-50-3620004) ...+31-50-xxxxxxx / 0031-50-xxxxxxx (050-xxxxxxx / 0-50-xxxxxxx) ...+31-50-3629995 / 0031-50-3629995 (050-3629995 / 0-50-3629995) +31-50-3629996 / 0031-50-3629996 (050-3629996 / 0-50-3629996) +31-50-3629997 / 0031-50-3629997 (050-3629997 / 0-50-3629997) +31-50-3629998 / 0031-50-3629998 (050-3629998 / 0-50-3629998) +31-50-3629999 / 0031-50-3629999 (050-3629999 / 0-50-3629999)