Area Code +44-1604-(350000...359999) located in Northampton, Northamptonshire (NTH), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 1604 Subscriber Number From : 350000 Subscriber Number To : 359999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : TG Support Limited Click here to buy United Kingdom Area Code Database Other Information Language Code : en (English) Country Number : 826 (United Kingdom) Country Code : GB (United Kingdom) Region Code : NTH Region Name : Northamptonshire City : Northampton Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 52.2400 Longitude : -0.9000 ‹ previous : +44-1604-(330000...339999) next › : +44-1604-(361000...361999) Dialling Instructions For trunk calls: 0 1604 350000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 1604 350000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 350000 ~ 359999 (Count: 10,000) Example: +44-1604-350000 / 0044-1604-350000 (01604-350000 / 0-1604-350000) +44-1604-350001 / 0044-1604-350001 (01604-350001 / 0-1604-350001) +44-1604-350002 / 0044-1604-350002 (01604-350002 / 0-1604-350002) +44-1604-350003 / 0044-1604-350003 (01604-350003 / 0-1604-350003) +44-1604-350004 / 0044-1604-350004 (01604-350004 / 0-1604-350004) ...+44-1604-xxxxxx / 0044-1604-xxxxxx (01604-xxxxxx / 0-1604-xxxxxx) ...+44-1604-359995 / 0044-1604-359995 (01604-359995 / 0-1604-359995) +44-1604-359996 / 0044-1604-359996 (01604-359996 / 0-1604-359996) +44-1604-359997 / 0044-1604-359997 (01604-359997 / 0-1604-359997) +44-1604-359998 / 0044-1604-359998 (01604-359998 / 0-1604-359998) +44-1604-359999 / 0044-1604-359999 (01604-359999 / 0-1604-359999)