Area Code +44-20-(87790000...87799999) 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 : 87790000 Subscriber Number To : 87799999 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 : Atlas Interactive Group 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-(87780000...87789999) next › : +44-20-(87800000...87809999) Dialling Instructions For trunk calls: 0 20 87790000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 87790000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 87790000 ~ 87799999 (Count: 10,000) Example: +44-20-87790000 / 0044-20-87790000 (020-87790000 / 0-20-87790000) +44-20-87790001 / 0044-20-87790001 (020-87790001 / 0-20-87790001) +44-20-87790002 / 0044-20-87790002 (020-87790002 / 0-20-87790002) +44-20-87790003 / 0044-20-87790003 (020-87790003 / 0-20-87790003) +44-20-87790004 / 0044-20-87790004 (020-87790004 / 0-20-87790004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-87799995 / 0044-20-87799995 (020-87799995 / 0-20-87799995) +44-20-87799996 / 0044-20-87799996 (020-87799996 / 0-20-87799996) +44-20-87799997 / 0044-20-87799997 (020-87799997 / 0-20-87799997) +44-20-87799998 / 0044-20-87799998 (020-87799998 / 0-20-87799998) +44-20-87799999 / 0044-20-87799999 (020-87799999 / 0-20-87799999)