Area Code +31-523-(728000...728999) located in Hardenberg, Overijssel (OV), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 523 Subscriber Number From : 728000 Subscriber Number To : 728999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Voxbone S.A. Click here to buy Netherlands Area Code Database Other Information Language Code : nl (Dutch) Country Number : 528 (Netherlands) Country Code : NL (Netherlands) Region Code : OV Region Name : Overijssel City : Hardenberg Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 52.5800 Longitude : 6.6200 ‹ previous : +31-523-(727000...727999) next › : +31-523-(729000...729999) Dialling Instructions For trunk calls: 0 523 728000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 523 728000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 728000 ~ 728999 (Count: 1,000) Example: +31-523-728000 / 0031-523-728000 (0523-728000 / 0-523-728000) +31-523-728001 / 0031-523-728001 (0523-728001 / 0-523-728001) +31-523-728002 / 0031-523-728002 (0523-728002 / 0-523-728002) +31-523-728003 / 0031-523-728003 (0523-728003 / 0-523-728003) +31-523-728004 / 0031-523-728004 (0523-728004 / 0-523-728004) ...+31-523-xxxxxx / 0031-523-xxxxxx (0523-xxxxxx / 0-523-xxxxxx) ...+31-523-728995 / 0031-523-728995 (0523-728995 / 0-523-728995) +31-523-728996 / 0031-523-728996 (0523-728996 / 0-523-728996) +31-523-728997 / 0031-523-728997 (0523-728997 / 0-523-728997) +31-523-728998 / 0031-523-728998 (0523-728998 / 0-523-728998) +31-523-728999 / 0031-523-728999 (0523-728999 / 0-523-728999)