Area Code +44-1436-(230000...239999) located in Helensburgh, Argyll and Bute (AGB), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 1436 Subscriber Number From : 230000 Subscriber Number To : 239999 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 : Barritel 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 : AGB Region Name : Argyll and Bute City : Helensburgh Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 56.0000 Longitude : -4.7300 ‹ previous : +44-1436-(220000...229999) next › : +44-1436-(240000...249999) Dialling Instructions For trunk calls: 0 1436 230000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 1436 230000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 230000 ~ 239999 (Count: 10,000) Example: +44-1436-230000 / 0044-1436-230000 (01436-230000 / 0-1436-230000) +44-1436-230001 / 0044-1436-230001 (01436-230001 / 0-1436-230001) +44-1436-230002 / 0044-1436-230002 (01436-230002 / 0-1436-230002) +44-1436-230003 / 0044-1436-230003 (01436-230003 / 0-1436-230003) +44-1436-230004 / 0044-1436-230004 (01436-230004 / 0-1436-230004) ...+44-1436-xxxxxx / 0044-1436-xxxxxx (01436-xxxxxx / 0-1436-xxxxxx) ...+44-1436-239995 / 0044-1436-239995 (01436-239995 / 0-1436-239995) +44-1436-239996 / 0044-1436-239996 (01436-239996 / 0-1436-239996) +44-1436-239997 / 0044-1436-239997 (01436-239997 / 0-1436-239997) +44-1436-239998 / 0044-1436-239998 (01436-239998 / 0-1436-239998) +44-1436-239999 / 0044-1436-239999 (01436-239999 / 0-1436-239999)