Area Code +44-20-(77880000...77889999) 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 : 77880000 Subscriber Number To : 77889999 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 : Affiniti Integrated Solutions 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-(77870000...77879999) next › : +44-20-(77890000...77899999) Dialling Instructions For trunk calls: 0 20 77880000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 77880000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 77880000 ~ 77889999 (Count: 10,000) Example: +44-20-77880000 / 0044-20-77880000 (020-77880000 / 0-20-77880000) +44-20-77880001 / 0044-20-77880001 (020-77880001 / 0-20-77880001) +44-20-77880002 / 0044-20-77880002 (020-77880002 / 0-20-77880002) +44-20-77880003 / 0044-20-77880003 (020-77880003 / 0-20-77880003) +44-20-77880004 / 0044-20-77880004 (020-77880004 / 0-20-77880004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-77889995 / 0044-20-77889995 (020-77889995 / 0-20-77889995) +44-20-77889996 / 0044-20-77889996 (020-77889996 / 0-20-77889996) +44-20-77889997 / 0044-20-77889997 (020-77889997 / 0-20-77889997) +44-20-77889998 / 0044-20-77889998 (020-77889998 / 0-20-77889998) +44-20-77889999 / 0044-20-77889999 (020-77889999 / 0-20-77889999)