Area Code +44-20-(81710000...81719999) 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 : 81710000 Subscriber Number To : 81719999 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 : HighSpeed Office 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-(81660000...81669999) next › : +44-20-(81720000...81729999) Dialling Instructions For trunk calls: 0 20 81710000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 81710000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 81710000 ~ 81719999 (Count: 10,000) Example: +44-20-81710000 / 0044-20-81710000 (020-81710000 / 0-20-81710000) +44-20-81710001 / 0044-20-81710001 (020-81710001 / 0-20-81710001) +44-20-81710002 / 0044-20-81710002 (020-81710002 / 0-20-81710002) +44-20-81710003 / 0044-20-81710003 (020-81710003 / 0-20-81710003) +44-20-81710004 / 0044-20-81710004 (020-81710004 / 0-20-81710004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-81719995 / 0044-20-81719995 (020-81719995 / 0-20-81719995) +44-20-81719996 / 0044-20-81719996 (020-81719996 / 0-20-81719996) +44-20-81719997 / 0044-20-81719997 (020-81719997 / 0-20-81719997) +44-20-81719998 / 0044-20-81719998 (020-81719998 / 0-20-81719998) +44-20-81719999 / 0044-20-81719999 (020-81719999 / 0-20-81719999)
