Area Code +44-1707-(233000...233999) 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 : 233000 Subscriber Number To : 233999 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 : Level 3 Communications UK 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 : 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-(230000...230999) next › : +44-1707-(239000...239999) Dialling Instructions For trunk calls: 0 1707 233000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 1707 233000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 233000 ~ 233999 (Count: 1,000) Example: +44-1707-233000 / 0044-1707-233000 (01707-233000 / 0-1707-233000) +44-1707-233001 / 0044-1707-233001 (01707-233001 / 0-1707-233001) +44-1707-233002 / 0044-1707-233002 (01707-233002 / 0-1707-233002) +44-1707-233003 / 0044-1707-233003 (01707-233003 / 0-1707-233003) +44-1707-233004 / 0044-1707-233004 (01707-233004 / 0-1707-233004) ...+44-1707-xxxxxx / 0044-1707-xxxxxx (01707-xxxxxx / 0-1707-xxxxxx) ...+44-1707-233995 / 0044-1707-233995 (01707-233995 / 0-1707-233995) +44-1707-233996 / 0044-1707-233996 (01707-233996 / 0-1707-233996) +44-1707-233997 / 0044-1707-233997 (01707-233997 / 0-1707-233997) +44-1707-233998 / 0044-1707-233998 (01707-233998 / 0-1707-233998) +44-1707-233999 / 0044-1707-233999 (01707-233999 / 0-1707-233999)