Area Code +44-20-(00000000...00009999) 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 : 00000000 Subscriber Number To : 00009999 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 : Vodafone Ltd (Thus) 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 : +44-1997-(980000...989999) next › : +44-20-(00010000...00019999) Dialling Instructions For trunk calls: 0 20 00000000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 00000000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 00000000 ~ 00009999 (Count: 10,000) Example: +44-20-00000000 / 0044-20-00000000 (020-00000000 / 0-20-00000000) +44-20-00000001 / 0044-20-00000001 (020-00000001 / 0-20-00000001) +44-20-00000002 / 0044-20-00000002 (020-00000002 / 0-20-00000002) +44-20-00000003 / 0044-20-00000003 (020-00000003 / 0-20-00000003) +44-20-00000004 / 0044-20-00000004 (020-00000004 / 0-20-00000004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-00009995 / 0044-20-00009995 (020-00009995 / 0-20-00009995) +44-20-00009996 / 0044-20-00009996 (020-00009996 / 0-20-00009996) +44-20-00009997 / 0044-20-00009997 (020-00009997 / 0-20-00009997) +44-20-00009998 / 0044-20-00009998 (020-00009998 / 0-20-00009998) +44-20-00009999 / 0044-20-00009999 (020-00009999 / 0-20-00009999)