Area Code +44-23-(00020000...00029999) located in Southampton, Southampton (STH), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 23 Subscriber Number From : 00020000 Subscriber Number To : 00029999 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 : Virgin Media 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 : STH Region Name : Southampton City : Southampton Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 50.9000 Longitude : -1.4000 ‹ previous : +44-23-(00010000...00019999) next › : +44-23-(11010000...11019999) Dialling Instructions For trunk calls: 0 23 00020000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 23 00020000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 00020000 ~ 00029999 (Count: 10,000) Example: +44-23-00020000 / 0044-23-00020000 (023-00020000 / 0-23-00020000) +44-23-00020001 / 0044-23-00020001 (023-00020001 / 0-23-00020001) +44-23-00020002 / 0044-23-00020002 (023-00020002 / 0-23-00020002) +44-23-00020003 / 0044-23-00020003 (023-00020003 / 0-23-00020003) +44-23-00020004 / 0044-23-00020004 (023-00020004 / 0-23-00020004) ...+44-23-xxxxxxxx / 0044-23-xxxxxxxx (023-xxxxxxxx / 0-23-xxxxxxxx) ...+44-23-00029995 / 0044-23-00029995 (023-00029995 / 0-23-00029995) +44-23-00029996 / 0044-23-00029996 (023-00029996 / 0-23-00029996) +44-23-00029997 / 0044-23-00029997 (023-00029997 / 0-23-00029997) +44-23-00029998 / 0044-23-00029998 (023-00029998 / 0-23-00029998) +44-23-00029999 / 0044-23-00029999 (023-00029999 / 0-23-00029999)