Area Code +31-521-(580000...589999) located in Steenwijk, Drenthe (DR), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 521 Subscriber Number From : 580000 Subscriber Number To : 589999 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 : 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 : DR Region Name : Drenthe City : Steenwijk Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 52.7900 Longitude : 6.1200 ‹ previous : +31-521-(570000...579999) next › : +31-521-(590000...599999) Dialling Instructions For trunk calls: 0 521 580000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 521 580000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 580000 ~ 589999 (Count: 10,000) Example: +31-521-580000 / 0031-521-580000 (0521-580000 / 0-521-580000) +31-521-580001 / 0031-521-580001 (0521-580001 / 0-521-580001) +31-521-580002 / 0031-521-580002 (0521-580002 / 0-521-580002) +31-521-580003 / 0031-521-580003 (0521-580003 / 0-521-580003) +31-521-580004 / 0031-521-580004 (0521-580004 / 0-521-580004) ...+31-521-xxxxxx / 0031-521-xxxxxx (0521-xxxxxx / 0-521-xxxxxx) ...+31-521-589995 / 0031-521-589995 (0521-589995 / 0-521-589995) +31-521-589996 / 0031-521-589996 (0521-589996 / 0-521-589996) +31-521-589997 / 0031-521-589997 (0521-589997 / 0-521-589997) +31-521-589998 / 0031-521-589998 (0521-589998 / 0-521-589998) +31-521-589999 / 0031-521-589999 (0521-589999 / 0-521-589999)