Area Code +44-331-(1430000...1439999) located in National Number, more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 331 Subscriber Number From : 1430000 Subscriber Number To : 1439999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : N (N) Carrier Name : BT 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 : National Number Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 51.5000 Longitude : -0.1300 ‹ previous : +44-330-(9990000...9999999) next › : +44-331-(1440000...1449999) Dialling Instructions For trunk calls: 0 331 1430000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 331 1430000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 1430000 ~ 1439999 (Count: 10,000) Example: +44-331-1430000 / 0044-331-1430000 (0331-1430000 / 0-331-1430000) +44-331-1430001 / 0044-331-1430001 (0331-1430001 / 0-331-1430001) +44-331-1430002 / 0044-331-1430002 (0331-1430002 / 0-331-1430002) +44-331-1430003 / 0044-331-1430003 (0331-1430003 / 0-331-1430003) +44-331-1430004 / 0044-331-1430004 (0331-1430004 / 0-331-1430004) ...+44-331-xxxxxxx / 0044-331-xxxxxxx (0331-xxxxxxx / 0-331-xxxxxxx) ...+44-331-1439995 / 0044-331-1439995 (0331-1439995 / 0-331-1439995) +44-331-1439996 / 0044-331-1439996 (0331-1439996 / 0-331-1439996) +44-331-1439997 / 0044-331-1439997 (0331-1439997 / 0-331-1439997) +44-331-1439998 / 0044-331-1439998 (0331-1439998 / 0-331-1439998) +44-331-1439999 / 0044-331-1439999 (0331-1439999 / 0-331-1439999)