Area Code +44-20-(30630000...30639999) 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 : 30630000 Subscriber Number To : 30639999 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 : Vodafone Ltd (Thus) 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-(30620000...30629999) next › : +44-20-(30640000...30649999) Dialling Instructions For trunk calls: 0 20 30630000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 30630000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 30630000 ~ 30639999 (Count: 10,000) Example: +44-20-30630000 / 0044-20-30630000 (020-30630000 / 0-20-30630000) +44-20-30630001 / 0044-20-30630001 (020-30630001 / 0-20-30630001) +44-20-30630002 / 0044-20-30630002 (020-30630002 / 0-20-30630002) +44-20-30630003 / 0044-20-30630003 (020-30630003 / 0-20-30630003) +44-20-30630004 / 0044-20-30630004 (020-30630004 / 0-20-30630004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-30639995 / 0044-20-30639995 (020-30639995 / 0-20-30639995) +44-20-30639996 / 0044-20-30639996 (020-30639996 / 0-20-30639996) +44-20-30639997 / 0044-20-30639997 (020-30639997 / 0-20-30639997) +44-20-30639998 / 0044-20-30639998 (020-30639998 / 0-20-30639998) +44-20-30639999 / 0044-20-30639999 (020-30639999 / 0-20-30639999)