Area Code +31-343-(440000...449999) 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 : 440000 Subscriber Number To : 449999 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-(430000...439999) next › : +31-343-(450000...459999) Dialling Instructions For trunk calls: 0 343 440000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 343 440000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 440000 ~ 449999 (Count: 10,000) Example: +31-343-440000 / 0031-343-440000 (0343-440000 / 0-343-440000) +31-343-440001 / 0031-343-440001 (0343-440001 / 0-343-440001) +31-343-440002 / 0031-343-440002 (0343-440002 / 0-343-440002) +31-343-440003 / 0031-343-440003 (0343-440003 / 0-343-440003) +31-343-440004 / 0031-343-440004 (0343-440004 / 0-343-440004) ...+31-343-xxxxxx / 0031-343-xxxxxx (0343-xxxxxx / 0-343-xxxxxx) ...+31-343-449995 / 0031-343-449995 (0343-449995 / 0-343-449995) +31-343-449996 / 0031-343-449996 (0343-449996 / 0-343-449996) +31-343-449997 / 0031-343-449997 (0343-449997 / 0-343-449997) +31-343-449998 / 0031-343-449998 (0343-449998 / 0-343-449998) +31-343-449999 / 0031-343-449999 (0343-449999 / 0-343-449999)