Area Code +44-20-(71200000...71209999) 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 : 71200000 Subscriber Number To : 71209999 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 : Callmonitor 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-(71190000...71199999) next › : +44-20-(71210000...71219999) Dialling Instructions For trunk calls: 0 20 71200000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 71200000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 71200000 ~ 71209999 (Count: 10,000) Example: +44-20-71200000 / 0044-20-71200000 (020-71200000 / 0-20-71200000) +44-20-71200001 / 0044-20-71200001 (020-71200001 / 0-20-71200001) +44-20-71200002 / 0044-20-71200002 (020-71200002 / 0-20-71200002) +44-20-71200003 / 0044-20-71200003 (020-71200003 / 0-20-71200003) +44-20-71200004 / 0044-20-71200004 (020-71200004 / 0-20-71200004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-71209995 / 0044-20-71209995 (020-71209995 / 0-20-71209995) +44-20-71209996 / 0044-20-71209996 (020-71209996 / 0-20-71209996) +44-20-71209997 / 0044-20-71209997 (020-71209997 / 0-20-71209997) +44-20-71209998 / 0044-20-71209998 (020-71209998 / 0-20-71209998) +44-20-71209999 / 0044-20-71209999 (020-71209999 / 0-20-71209999)