Area Code +44-1833-(312000...312999) located in Barnard Castle, County Durham (DUR), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 1833 Subscriber Number From : 312000 Subscriber Number To : 312999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : API Telecom 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 : DUR Region Name : County Durham City : Barnard Castle Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 54.5400 Longitude : -1.9200 ‹ previous : +44-1833-(311000...311999) next › : +44-1833-(313000...313999) Dialling Instructions For trunk calls: 0 1833 312000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 1833 312000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 312000 ~ 312999 (Count: 1,000) Example: +44-1833-312000 / 0044-1833-312000 (01833-312000 / 0-1833-312000) +44-1833-312001 / 0044-1833-312001 (01833-312001 / 0-1833-312001) +44-1833-312002 / 0044-1833-312002 (01833-312002 / 0-1833-312002) +44-1833-312003 / 0044-1833-312003 (01833-312003 / 0-1833-312003) +44-1833-312004 / 0044-1833-312004 (01833-312004 / 0-1833-312004) ...+44-1833-xxxxxx / 0044-1833-xxxxxx (01833-xxxxxx / 0-1833-xxxxxx) ...+44-1833-312995 / 0044-1833-312995 (01833-312995 / 0-1833-312995) +44-1833-312996 / 0044-1833-312996 (01833-312996 / 0-1833-312996) +44-1833-312997 / 0044-1833-312997 (01833-312997 / 0-1833-312997) +44-1833-312998 / 0044-1833-312998 (01833-312998 / 0-1833-312998) +44-1833-312999 / 0044-1833-312999 (01833-312999 / 0-1833-312999)