Area Code +44-20-(78990000...78999999) 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 : 78990000 Subscriber Number To : 78999999 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 : Spacetel UK 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-(78980000...78989999) next › : +44-20-(79000000...79009999) Dialling Instructions For trunk calls: 0 20 78990000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 78990000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 78990000 ~ 78999999 (Count: 10,000) Example: +44-20-78990000 / 0044-20-78990000 (020-78990000 / 0-20-78990000) +44-20-78990001 / 0044-20-78990001 (020-78990001 / 0-20-78990001) +44-20-78990002 / 0044-20-78990002 (020-78990002 / 0-20-78990002) +44-20-78990003 / 0044-20-78990003 (020-78990003 / 0-20-78990003) +44-20-78990004 / 0044-20-78990004 (020-78990004 / 0-20-78990004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-78999995 / 0044-20-78999995 (020-78999995 / 0-20-78999995) +44-20-78999996 / 0044-20-78999996 (020-78999996 / 0-20-78999996) +44-20-78999997 / 0044-20-78999997 (020-78999997 / 0-20-78999997) +44-20-78999998 / 0044-20-78999998 (020-78999998 / 0-20-78999998) +44-20-78999999 / 0044-20-78999999 (020-78999999 / 0-20-78999999)