Area Code +44-9831-(400000...409999) located in Sexual Entertainment Services at a Premium Rate for BT customers, more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 9831 Subscriber Number From : 400000 Subscriber Number To : 409999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : S (Special) Carrier Name : BWR International 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) City : Sexual Entertainment Services at a Premium Rate for BT customers 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 : +44-9831-(390000...399999) next › : +44-9831-(410000...419999) Dialling Instructions For trunk calls: 0 9831 400000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 9831 400000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 400000 ~ 409999 (Count: 10,000) Example: +44-9831-400000 / 0044-9831-400000 (09831-400000 / 0-9831-400000) +44-9831-400001 / 0044-9831-400001 (09831-400001 / 0-9831-400001) +44-9831-400002 / 0044-9831-400002 (09831-400002 / 0-9831-400002) +44-9831-400003 / 0044-9831-400003 (09831-400003 / 0-9831-400003) +44-9831-400004 / 0044-9831-400004 (09831-400004 / 0-9831-400004) ...+44-9831-xxxxxx / 0044-9831-xxxxxx (09831-xxxxxx / 0-9831-xxxxxx) ...+44-9831-409995 / 0044-9831-409995 (09831-409995 / 0-9831-409995) +44-9831-409996 / 0044-9831-409996 (09831-409996 / 0-9831-409996) +44-9831-409997 / 0044-9831-409997 (09831-409997 / 0-9831-409997) +44-9831-409998 / 0044-9831-409998 (09831-409998 / 0-9831-409998) +44-9831-409999 / 0044-9831-409999 (09831-409999 / 0-9831-409999)