Area Code +44-1389-(260000...269999) located in Dumbarton, West Dunbartonshire (WDU), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 1389 Subscriber Number From : 260000 Subscriber Number To : 269999 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 : Frontier Systems Ltd 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 : WDU Region Name : West Dunbartonshire City : Dumbarton Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 55.9500 Longitude : -4.5500 ‹ previous : +44-1389-(250000...259999) next › : +44-1389-(270000...279999) Dialling Instructions For trunk calls: 0 1389 260000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 1389 260000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 260000 ~ 269999 (Count: 10,000) Example: +44-1389-260000 / 0044-1389-260000 (01389-260000 / 0-1389-260000) +44-1389-260001 / 0044-1389-260001 (01389-260001 / 0-1389-260001) +44-1389-260002 / 0044-1389-260002 (01389-260002 / 0-1389-260002) +44-1389-260003 / 0044-1389-260003 (01389-260003 / 0-1389-260003) +44-1389-260004 / 0044-1389-260004 (01389-260004 / 0-1389-260004) ...+44-1389-xxxxxx / 0044-1389-xxxxxx (01389-xxxxxx / 0-1389-xxxxxx) ...+44-1389-269995 / 0044-1389-269995 (01389-269995 / 0-1389-269995) +44-1389-269996 / 0044-1389-269996 (01389-269996 / 0-1389-269996) +44-1389-269997 / 0044-1389-269997 (01389-269997 / 0-1389-269997) +44-1389-269998 / 0044-1389-269998 (01389-269998 / 0-1389-269998) +44-1389-269999 / 0044-1389-269999 (01389-269999 / 0-1389-269999)