Area Code +44-20-(37860000...37869999) 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 : 37860000 Subscriber Number To : 37869999 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 : Essensys 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-(37850000...37859999) next › : +44-20-(37870000...37879999) Dialling Instructions For trunk calls: 0 20 37860000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 37860000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 37860000 ~ 37869999 (Count: 10,000) Example: +44-20-37860000 / 0044-20-37860000 (020-37860000 / 0-20-37860000) +44-20-37860001 / 0044-20-37860001 (020-37860001 / 0-20-37860001) +44-20-37860002 / 0044-20-37860002 (020-37860002 / 0-20-37860002) +44-20-37860003 / 0044-20-37860003 (020-37860003 / 0-20-37860003) +44-20-37860004 / 0044-20-37860004 (020-37860004 / 0-20-37860004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-37869995 / 0044-20-37869995 (020-37869995 / 0-20-37869995) +44-20-37869996 / 0044-20-37869996 (020-37869996 / 0-20-37869996) +44-20-37869997 / 0044-20-37869997 (020-37869997 / 0-20-37869997) +44-20-37869998 / 0044-20-37869998 (020-37869998 / 0-20-37869998) +44-20-37869999 / 0044-20-37869999 (020-37869999 / 0-20-37869999)