Area Code +44-1707-(100000...109999) 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 : 100000 Subscriber Number To : 109999 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 : BT 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 : +44-1706-(980000...989999) next › : +44-1707-(200000...209999) Dialling Instructions For trunk calls: 0 1707 100000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 1707 100000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 100000 ~ 109999 (Count: 10,000) Example: +44-1707-100000 / 0044-1707-100000 (01707-100000 / 0-1707-100000) +44-1707-100001 / 0044-1707-100001 (01707-100001 / 0-1707-100001) +44-1707-100002 / 0044-1707-100002 (01707-100002 / 0-1707-100002) +44-1707-100003 / 0044-1707-100003 (01707-100003 / 0-1707-100003) +44-1707-100004 / 0044-1707-100004 (01707-100004 / 0-1707-100004) ...+44-1707-xxxxxx / 0044-1707-xxxxxx (01707-xxxxxx / 0-1707-xxxxxx) ...+44-1707-109995 / 0044-1707-109995 (01707-109995 / 0-1707-109995) +44-1707-109996 / 0044-1707-109996 (01707-109996 / 0-1707-109996) +44-1707-109997 / 0044-1707-109997 (01707-109997 / 0-1707-109997) +44-1707-109998 / 0044-1707-109998 (01707-109998 / 0-1707-109998) +44-1707-109999 / 0044-1707-109999 (01707-109999 / 0-1707-109999)