Area Code +44-20-(30850000...30859999) located in London, London, City of (LND), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 20 Subscriber Number From : 30850000 Subscriber Number To : 30859999 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 : Callax 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 : London, City of City : London Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 51.5000 Longitude : -0.1300 ‹ previous : +44-20-(30840000...30849999) next › : +44-20-(30860000...30869999) Dialling Instructions For trunk calls: 0 20 30850000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 30850000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 30850000 ~ 30859999 (Count: 10,000) Example: +44-20-30850000 / 0044-20-30850000 (020-30850000 / 0-20-30850000) +44-20-30850001 / 0044-20-30850001 (020-30850001 / 0-20-30850001) +44-20-30850002 / 0044-20-30850002 (020-30850002 / 0-20-30850002) +44-20-30850003 / 0044-20-30850003 (020-30850003 / 0-20-30850003) +44-20-30850004 / 0044-20-30850004 (020-30850004 / 0-20-30850004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-30859995 / 0044-20-30859995 (020-30859995 / 0-20-30859995) +44-20-30859996 / 0044-20-30859996 (020-30859996 / 0-20-30859996) +44-20-30859997 / 0044-20-30859997 (020-30859997 / 0-20-30859997) +44-20-30859998 / 0044-20-30859998 (020-30859998 / 0-20-30859998) +44-20-30859999 / 0044-20-30859999 (020-30859999 / 0-20-30859999)