Area Code +44-20-(33830000...33839999) 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 : 33830000 Subscriber Number To : 33839999 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 : Telecom2 Ltd 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-(33820000...33829999) next › : +44-20-(33840000...33849999) Dialling Instructions For trunk calls: 0 20 33830000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 33830000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 33830000 ~ 33839999 (Count: 10,000) Example: +44-20-33830000 / 0044-20-33830000 (020-33830000 / 0-20-33830000) +44-20-33830001 / 0044-20-33830001 (020-33830001 / 0-20-33830001) +44-20-33830002 / 0044-20-33830002 (020-33830002 / 0-20-33830002) +44-20-33830003 / 0044-20-33830003 (020-33830003 / 0-20-33830003) +44-20-33830004 / 0044-20-33830004 (020-33830004 / 0-20-33830004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-33839995 / 0044-20-33839995 (020-33839995 / 0-20-33839995) +44-20-33839996 / 0044-20-33839996 (020-33839996 / 0-20-33839996) +44-20-33839997 / 0044-20-33839997 (020-33839997 / 0-20-33839997) +44-20-33839998 / 0044-20-33839998 (020-33839998 / 0-20-33839998) +44-20-33839999 / 0044-20-33839999 (020-33839999 / 0-20-33839999)