Area Code +31-523-(720000...720999) 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 : 720000 Subscriber Number To : 720999 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 : Ziggo Zakelijk Services 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 : 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-(714000...714999) next › : +31-523-(720100...720999) Dialling Instructions For trunk calls: 0 523 720000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 523 720000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 720000 ~ 720999 (Count: 1,000) Example: +31-523-720000 / 0031-523-720000 (0523-720000 / 0-523-720000) +31-523-720001 / 0031-523-720001 (0523-720001 / 0-523-720001) +31-523-720002 / 0031-523-720002 (0523-720002 / 0-523-720002) +31-523-720003 / 0031-523-720003 (0523-720003 / 0-523-720003) +31-523-720004 / 0031-523-720004 (0523-720004 / 0-523-720004) ...+31-523-xxxxxx / 0031-523-xxxxxx (0523-xxxxxx / 0-523-xxxxxx) ...+31-523-720995 / 0031-523-720995 (0523-720995 / 0-523-720995) +31-523-720996 / 0031-523-720996 (0523-720996 / 0-523-720996) +31-523-720997 / 0031-523-720997 (0523-720997 / 0-523-720997) +31-523-720998 / 0031-523-720998 (0523-720998 / 0-523-720998) +31-523-720999 / 0031-523-720999 (0523-720999 / 0-523-720999)