Area Code +44-20-(30330000...30339999) located in London, City of London (LND), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 20 Subscriber Number From : 30330000 Subscriber Number To : 30339999 National Destination Code Length : 2 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 : LND Region Name : City of London City : London Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 51.5100 Longitude : -0.1300 ‹ previous : +44-20-(30320000...30329999) next › : +44-20-(30350000...30359999) Dialling Instructions For trunk calls: 0 20 30330000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 30330000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 30330000 ~ 30339999 (Count: 10,000) Example: +44-20-30330000 / 0044-20-30330000 (020-30330000 / 0-20-30330000) +44-20-30330001 / 0044-20-30330001 (020-30330001 / 0-20-30330001) +44-20-30330002 / 0044-20-30330002 (020-30330002 / 0-20-30330002) +44-20-30330003 / 0044-20-30330003 (020-30330003 / 0-20-30330003) +44-20-30330004 / 0044-20-30330004 (020-30330004 / 0-20-30330004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-30339995 / 0044-20-30339995 (020-30339995 / 0-20-30339995) +44-20-30339996 / 0044-20-30339996 (020-30339996 / 0-20-30339996) +44-20-30339997 / 0044-20-30339997 (020-30339997 / 0-20-30339997) +44-20-30339998 / 0044-20-30339998 (020-30339998 / 0-20-30339998) +44-20-30339999 / 0044-20-30339999 (020-30339999 / 0-20-30339999)