Area Code +44-20-(35100000...35109999) 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 : 35100000 Subscriber Number To : 35109999 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 : Red Matter 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-(35090000...35099999) next › : +44-20-(35110000...35119999) Dialling Instructions For trunk calls: 0 20 35100000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 35100000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 35100000 ~ 35109999 (Count: 10,000) Example: +44-20-35100000 / 0044-20-35100000 (020-35100000 / 0-20-35100000) +44-20-35100001 / 0044-20-35100001 (020-35100001 / 0-20-35100001) +44-20-35100002 / 0044-20-35100002 (020-35100002 / 0-20-35100002) +44-20-35100003 / 0044-20-35100003 (020-35100003 / 0-20-35100003) +44-20-35100004 / 0044-20-35100004 (020-35100004 / 0-20-35100004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-35109995 / 0044-20-35109995 (020-35109995 / 0-20-35109995) +44-20-35109996 / 0044-20-35109996 (020-35109996 / 0-20-35109996) +44-20-35109997 / 0044-20-35109997 (020-35109997 / 0-20-35109997) +44-20-35109998 / 0044-20-35109998 (020-35109998 / 0-20-35109998) +44-20-35109999 / 0044-20-35109999 (020-35109999 / 0-20-35109999)