Area Code +31-30-(8440000...8449999) located in Utrecht, Utrecht (UT), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 30 Subscriber Number From : 8440000 Subscriber Number To : 8449999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : UPC Nederland 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 : Utrecht Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 52.0900 Longitude : 5.1200 ‹ previous : +31-30-(8330000...8339999) next › : +31-30-(8500000...8509999) Dialling Instructions For trunk calls: 0 30 8440000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 30 8440000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8440000 ~ 8449999 (Count: 10,000) Example: +31-30-8440000 / 0031-30-8440000 (030-8440000 / 0-30-8440000) +31-30-8440001 / 0031-30-8440001 (030-8440001 / 0-30-8440001) +31-30-8440002 / 0031-30-8440002 (030-8440002 / 0-30-8440002) +31-30-8440003 / 0031-30-8440003 (030-8440003 / 0-30-8440003) +31-30-8440004 / 0031-30-8440004 (030-8440004 / 0-30-8440004) ...+31-30-xxxxxxx / 0031-30-xxxxxxx (030-xxxxxxx / 0-30-xxxxxxx) ...+31-30-8449995 / 0031-30-8449995 (030-8449995 / 0-30-8449995) +31-30-8449996 / 0031-30-8449996 (030-8449996 / 0-30-8449996) +31-30-8449997 / 0031-30-8449997 (030-8449997 / 0-30-8449997) +31-30-8449998 / 0031-30-8449998 (030-8449998 / 0-30-8449998) +31-30-8449999 / 0031-30-8449999 (030-8449999 / 0-30-8449999)