Area Code +31-521-(350000...359999) 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 : 350000 Subscriber Number To : 359999 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-(340000...349999) next › : +31-521-(360000...369999) Dialling Instructions For trunk calls: 0 521 350000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 521 350000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 350000 ~ 359999 (Count: 10,000) Example: +31-521-350000 / 0031-521-350000 (0521-350000 / 0-521-350000) +31-521-350001 / 0031-521-350001 (0521-350001 / 0-521-350001) +31-521-350002 / 0031-521-350002 (0521-350002 / 0-521-350002) +31-521-350003 / 0031-521-350003 (0521-350003 / 0-521-350003) +31-521-350004 / 0031-521-350004 (0521-350004 / 0-521-350004) ...+31-521-xxxxxx / 0031-521-xxxxxx (0521-xxxxxx / 0-521-xxxxxx) ...+31-521-359995 / 0031-521-359995 (0521-359995 / 0-521-359995) +31-521-359996 / 0031-521-359996 (0521-359996 / 0-521-359996) +31-521-359997 / 0031-521-359997 (0521-359997 / 0-521-359997) +31-521-359998 / 0031-521-359998 (0521-359998 / 0-521-359998) +31-521-359999 / 0031-521-359999 (0521-359999 / 0-521-359999)