Area Code +31-50-(2031000...2040999) 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 : 2031000 Subscriber Number To : 2040999 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 : 12Connect 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-(2030000...2030999) next › : +31-50-(2041000...2041999) Dialling Instructions For trunk calls: 0 50 2031000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 50 2031000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2031000 ~ 2040999 (Count: 10,000) Example: +31-50-2031000 / 0031-50-2031000 (050-2031000 / 0-50-2031000) +31-50-2031001 / 0031-50-2031001 (050-2031001 / 0-50-2031001) +31-50-2031002 / 0031-50-2031002 (050-2031002 / 0-50-2031002) +31-50-2031003 / 0031-50-2031003 (050-2031003 / 0-50-2031003) +31-50-2031004 / 0031-50-2031004 (050-2031004 / 0-50-2031004) ...+31-50-xxxxxxx / 0031-50-xxxxxxx (050-xxxxxxx / 0-50-xxxxxxx) ...+31-50-2040995 / 0031-50-2040995 (050-2040995 / 0-50-2040995) +31-50-2040996 / 0031-50-2040996 (050-2040996 / 0-50-2040996) +31-50-2040997 / 0031-50-2040997 (050-2040997 / 0-50-2040997) +31-50-2040998 / 0031-50-2040998 (050-2040998 / 0-50-2040998) +31-50-2040999 / 0031-50-2040999 (050-2040999 / 0-50-2040999)