Area Code +31-521-(510000...519999) 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 : 510000 Subscriber Number To : 519999 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-(380000...389999) next › : +31-521-(520000...529999) Dialling Instructions For trunk calls: 0 521 510000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 521 510000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 510000 ~ 519999 (Count: 10,000) Example: +31-521-510000 / 0031-521-510000 (0521-510000 / 0-521-510000) +31-521-510001 / 0031-521-510001 (0521-510001 / 0-521-510001) +31-521-510002 / 0031-521-510002 (0521-510002 / 0-521-510002) +31-521-510003 / 0031-521-510003 (0521-510003 / 0-521-510003) +31-521-510004 / 0031-521-510004 (0521-510004 / 0-521-510004) ...+31-521-xxxxxx / 0031-521-xxxxxx (0521-xxxxxx / 0-521-xxxxxx) ...+31-521-519995 / 0031-521-519995 (0521-519995 / 0-521-519995) +31-521-519996 / 0031-521-519996 (0521-519996 / 0-521-519996) +31-521-519997 / 0031-521-519997 (0521-519997 / 0-521-519997) +31-521-519998 / 0031-521-519998 (0521-519998 / 0-521-519998) +31-521-519999 / 0031-521-519999 (0521-519999 / 0-521-519999)