Area Code +44-20-(37350000...37359999) 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 : 37350000 Subscriber Number To : 37359999 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 : Excell Group Plc 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-(37340000...37349999) next › : +44-20-(37360000...37369999) Dialling Instructions For trunk calls: 0 20 37350000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 37350000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 37350000 ~ 37359999 (Count: 10,000) Example: +44-20-37350000 / 0044-20-37350000 (020-37350000 / 0-20-37350000) +44-20-37350001 / 0044-20-37350001 (020-37350001 / 0-20-37350001) +44-20-37350002 / 0044-20-37350002 (020-37350002 / 0-20-37350002) +44-20-37350003 / 0044-20-37350003 (020-37350003 / 0-20-37350003) +44-20-37350004 / 0044-20-37350004 (020-37350004 / 0-20-37350004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-37359995 / 0044-20-37359995 (020-37359995 / 0-20-37359995) +44-20-37359996 / 0044-20-37359996 (020-37359996 / 0-20-37359996) +44-20-37359997 / 0044-20-37359997 (020-37359997 / 0-20-37359997) +44-20-37359998 / 0044-20-37359998 (020-37359998 / 0-20-37359998) +44-20-37359999 / 0044-20-37359999 (020-37359999 / 0-20-37359999)