Area Code +44-23-(81590000...81599999) 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 : 81590000 Subscriber Number To : 81599999 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 : Red Matter 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-(81580000...81589999) next › : +44-23-(81600000...81609999) Dialling Instructions For trunk calls: 0 23 81590000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 23 81590000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 81590000 ~ 81599999 (Count: 10,000) Example: +44-23-81590000 / 0044-23-81590000 (023-81590000 / 0-23-81590000) +44-23-81590001 / 0044-23-81590001 (023-81590001 / 0-23-81590001) +44-23-81590002 / 0044-23-81590002 (023-81590002 / 0-23-81590002) +44-23-81590003 / 0044-23-81590003 (023-81590003 / 0-23-81590003) +44-23-81590004 / 0044-23-81590004 (023-81590004 / 0-23-81590004) ...+44-23-xxxxxxxx / 0044-23-xxxxxxxx (023-xxxxxxxx / 0-23-xxxxxxxx) ...+44-23-81599995 / 0044-23-81599995 (023-81599995 / 0-23-81599995) +44-23-81599996 / 0044-23-81599996 (023-81599996 / 0-23-81599996) +44-23-81599997 / 0044-23-81599997 (023-81599997 / 0-23-81599997) +44-23-81599998 / 0044-23-81599998 (023-81599998 / 0-23-81599998) +44-23-81599999 / 0044-23-81599999 (023-81599999 / 0-23-81599999)