Area Code +44-20-(80940000...80949999) 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 : 80940000 Subscriber Number To : 80949999 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 : Square Systems 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-(80850000...80859999) next › : +44-20-(80960000...80969999) Dialling Instructions For trunk calls: 0 20 80940000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 80940000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 80940000 ~ 80949999 (Count: 10,000) Example: +44-20-80940000 / 0044-20-80940000 (020-80940000 / 0-20-80940000) +44-20-80940001 / 0044-20-80940001 (020-80940001 / 0-20-80940001) +44-20-80940002 / 0044-20-80940002 (020-80940002 / 0-20-80940002) +44-20-80940003 / 0044-20-80940003 (020-80940003 / 0-20-80940003) +44-20-80940004 / 0044-20-80940004 (020-80940004 / 0-20-80940004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-80949995 / 0044-20-80949995 (020-80949995 / 0-20-80949995) +44-20-80949996 / 0044-20-80949996 (020-80949996 / 0-20-80949996) +44-20-80949997 / 0044-20-80949997 (020-80949997 / 0-20-80949997) +44-20-80949998 / 0044-20-80949998 (020-80949998 / 0-20-80949998) +44-20-80949999 / 0044-20-80949999 (020-80949999 / 0-20-80949999)