Area Code +44-20-(30420000...30429999) 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 : 30420000 Subscriber Number To : 30429999 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 : Virgin Media 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 : 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-(30410000...30419999) next › : +44-20-(30430000...30439999) Dialling Instructions For trunk calls: 0 20 30420000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 30420000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 30420000 ~ 30429999 (Count: 10,000) Example: +44-20-30420000 / 0044-20-30420000 (020-30420000 / 0-20-30420000) +44-20-30420001 / 0044-20-30420001 (020-30420001 / 0-20-30420001) +44-20-30420002 / 0044-20-30420002 (020-30420002 / 0-20-30420002) +44-20-30420003 / 0044-20-30420003 (020-30420003 / 0-20-30420003) +44-20-30420004 / 0044-20-30420004 (020-30420004 / 0-20-30420004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-30429995 / 0044-20-30429995 (020-30429995 / 0-20-30429995) +44-20-30429996 / 0044-20-30429996 (020-30429996 / 0-20-30429996) +44-20-30429997 / 0044-20-30429997 (020-30429997 / 0-20-30429997) +44-20-30429998 / 0044-20-30429998 (020-30429998 / 0-20-30429998) +44-20-30429999 / 0044-20-30429999 (020-30429999 / 0-20-30429999)