Area Code +44-1707-(220000...229999) located in Welwyn Garden City, Hertfordshire (HRT), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 1707 Subscriber Number From : 220000 Subscriber Number To : 229999 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 : Vodafone Ltd (C&W) 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 : HRT Region Name : Hertfordshire City : Welwyn Garden City Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 51.8000 Longitude : -0.2100 ‹ previous : +44-1707-(210000...219999) next › : +44-1707-(230000...230999) Dialling Instructions For trunk calls: 0 1707 220000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 1707 220000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 220000 ~ 229999 (Count: 10,000) Example: +44-1707-220000 / 0044-1707-220000 (01707-220000 / 0-1707-220000) +44-1707-220001 / 0044-1707-220001 (01707-220001 / 0-1707-220001) +44-1707-220002 / 0044-1707-220002 (01707-220002 / 0-1707-220002) +44-1707-220003 / 0044-1707-220003 (01707-220003 / 0-1707-220003) +44-1707-220004 / 0044-1707-220004 (01707-220004 / 0-1707-220004) ...+44-1707-xxxxxx / 0044-1707-xxxxxx (01707-xxxxxx / 0-1707-xxxxxx) ...+44-1707-229995 / 0044-1707-229995 (01707-229995 / 0-1707-229995) +44-1707-229996 / 0044-1707-229996 (01707-229996 / 0-1707-229996) +44-1707-229997 / 0044-1707-229997 (01707-229997 / 0-1707-229997) +44-1707-229998 / 0044-1707-229998 (01707-229998 / 0-1707-229998) +44-1707-229999 / 0044-1707-229999 (01707-229999 / 0-1707-229999)