Area Code +31-343-(340000...349999) 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 : 340000 Subscriber Number To : 349999 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 : BT NEDERLAND N.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-(200000...200999) next › : +31-343-(410000...419999) Dialling Instructions For trunk calls: 0 343 340000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 343 340000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 340000 ~ 349999 (Count: 10,000) Example: +31-343-340000 / 0031-343-340000 (0343-340000 / 0-343-340000) +31-343-340001 / 0031-343-340001 (0343-340001 / 0-343-340001) +31-343-340002 / 0031-343-340002 (0343-340002 / 0-343-340002) +31-343-340003 / 0031-343-340003 (0343-340003 / 0-343-340003) +31-343-340004 / 0031-343-340004 (0343-340004 / 0-343-340004) ...+31-343-xxxxxx / 0031-343-xxxxxx (0343-xxxxxx / 0-343-xxxxxx) ...+31-343-349995 / 0031-343-349995 (0343-349995 / 0-343-349995) +31-343-349996 / 0031-343-349996 (0343-349996 / 0-343-349996) +31-343-349997 / 0031-343-349997 (0343-349997 / 0-343-349997) +31-343-349998 / 0031-343-349998 (0343-349998 / 0-343-349998) +31-343-349999 / 0031-343-349999 (0343-349999 / 0-343-349999)