Area Code +31-343-(570000...579999) located in Doorn, Utrecht (UT), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 343 Subscriber Number From : 570000 Subscriber Number To : 579999 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 : UT Region Name : Utrecht City : Doorn Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 52.0300 Longitude : 5.3500 ‹ previous : +31-343-(560000...569999) next › : +31-343-(590000...599999) Dialling Instructions For trunk calls: 0 343 570000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 343 570000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 570000 ~ 579999 (Count: 10,000) Example: +31-343-570000 / 0031-343-570000 (0343-570000 / 0-343-570000) +31-343-570001 / 0031-343-570001 (0343-570001 / 0-343-570001) +31-343-570002 / 0031-343-570002 (0343-570002 / 0-343-570002) +31-343-570003 / 0031-343-570003 (0343-570003 / 0-343-570003) +31-343-570004 / 0031-343-570004 (0343-570004 / 0-343-570004) ...+31-343-xxxxxx / 0031-343-xxxxxx (0343-xxxxxx / 0-343-xxxxxx) ...+31-343-579995 / 0031-343-579995 (0343-579995 / 0-343-579995) +31-343-579996 / 0031-343-579996 (0343-579996 / 0-343-579996) +31-343-579997 / 0031-343-579997 (0343-579997 / 0-343-579997) +31-343-579998 / 0031-343-579998 (0343-579998 / 0-343-579998) +31-343-579999 / 0031-343-579999 (0343-579999 / 0-343-579999)