Area Code +31-523-(721100...721999) 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 : 721100 Subscriber Number To : 721999 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 : ACM 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-(720100...720999) next › : +31-523-(722000...722999) Dialling Instructions For trunk calls: 0 523 721100 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 523 721100 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 721100 ~ 721999 (Count: 900) Example: +31-523-721100 / 0031-523-721100 (0523-721100 / 0-523-721100) +31-523-721101 / 0031-523-721101 (0523-721101 / 0-523-721101) +31-523-721102 / 0031-523-721102 (0523-721102 / 0-523-721102) +31-523-721103 / 0031-523-721103 (0523-721103 / 0-523-721103) +31-523-721104 / 0031-523-721104 (0523-721104 / 0-523-721104) ...+31-523-xxxxxx / 0031-523-xxxxxx (0523-xxxxxx / 0-523-xxxxxx) ...+31-523-721995 / 0031-523-721995 (0523-721995 / 0-523-721995) +31-523-721996 / 0031-523-721996 (0523-721996 / 0-523-721996) +31-523-721997 / 0031-523-721997 (0523-721997 / 0-523-721997) +31-523-721998 / 0031-523-721998 (0523-721998 / 0-523-721998) +31-523-721999 / 0031-523-721999 (0523-721999 / 0-523-721999)