Area Code +44-1923-(318000...318999) 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 : 318000 Subscriber Number To : 318999 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 : Vodafone Ltd (Thus) 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-(312000...312999) next › : +44-1923-(319000...319999) Dialling Instructions For trunk calls: 0 1923 318000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 1923 318000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 318000 ~ 318999 (Count: 1,000) Example: +44-1923-318000 / 0044-1923-318000 (01923-318000 / 0-1923-318000) +44-1923-318001 / 0044-1923-318001 (01923-318001 / 0-1923-318001) +44-1923-318002 / 0044-1923-318002 (01923-318002 / 0-1923-318002) +44-1923-318003 / 0044-1923-318003 (01923-318003 / 0-1923-318003) +44-1923-318004 / 0044-1923-318004 (01923-318004 / 0-1923-318004) ...+44-1923-xxxxxx / 0044-1923-xxxxxx (01923-xxxxxx / 0-1923-xxxxxx) ...+44-1923-318995 / 0044-1923-318995 (01923-318995 / 0-1923-318995) +44-1923-318996 / 0044-1923-318996 (01923-318996 / 0-1923-318996) +44-1923-318997 / 0044-1923-318997 (01923-318997 / 0-1923-318997) +44-1923-318998 / 0044-1923-318998 (01923-318998 / 0-1923-318998) +44-1923-318999 / 0044-1923-318999 (01923-318999 / 0-1923-318999)