Area Code +44-1923-(240000...249999) located in Watford, Hertfordshire (HRT), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 1923 Subscriber Number From : 240000 Subscriber Number To : 249999 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 : 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) Region Code : HRT Region Name : Hertfordshire City : Watford Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 51.6500 Longitude : -0.4000 ‹ previous : +44-1923-(230000...239999) next › : +44-1923-(250000...259999) Dialling Instructions For trunk calls: 0 1923 240000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 1923 240000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 240000 ~ 249999 (Count: 10,000) Example: +44-1923-240000 / 0044-1923-240000 (01923-240000 / 0-1923-240000) +44-1923-240001 / 0044-1923-240001 (01923-240001 / 0-1923-240001) +44-1923-240002 / 0044-1923-240002 (01923-240002 / 0-1923-240002) +44-1923-240003 / 0044-1923-240003 (01923-240003 / 0-1923-240003) +44-1923-240004 / 0044-1923-240004 (01923-240004 / 0-1923-240004) ...+44-1923-xxxxxx / 0044-1923-xxxxxx (01923-xxxxxx / 0-1923-xxxxxx) ...+44-1923-249995 / 0044-1923-249995 (01923-249995 / 0-1923-249995) +44-1923-249996 / 0044-1923-249996 (01923-249996 / 0-1923-249996) +44-1923-249997 / 0044-1923-249997 (01923-249997 / 0-1923-249997) +44-1923-249998 / 0044-1923-249998 (01923-249998 / 0-1923-249998) +44-1923-249999 / 0044-1923-249999 (01923-249999 / 0-1923-249999)