Area Code +44-20-(31770000...31779999) 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 : 31770000 Subscriber Number To : 31779999 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 : BT 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-(31760000...31769999) next › : +44-20-(31780000...31789999) Dialling Instructions For trunk calls: 0 20 31770000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 31770000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 31770000 ~ 31779999 (Count: 10,000) Example: +44-20-31770000 / 0044-20-31770000 (020-31770000 / 0-20-31770000) +44-20-31770001 / 0044-20-31770001 (020-31770001 / 0-20-31770001) +44-20-31770002 / 0044-20-31770002 (020-31770002 / 0-20-31770002) +44-20-31770003 / 0044-20-31770003 (020-31770003 / 0-20-31770003) +44-20-31770004 / 0044-20-31770004 (020-31770004 / 0-20-31770004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-31779995 / 0044-20-31779995 (020-31779995 / 0-20-31779995) +44-20-31779996 / 0044-20-31779996 (020-31779996 / 0-20-31779996) +44-20-31779997 / 0044-20-31779997 (020-31779997 / 0-20-31779997) +44-20-31779998 / 0044-20-31779998 (020-31779998 / 0-20-31779998) +44-20-31779999 / 0044-20-31779999 (020-31779999 / 0-20-31779999)
