Area Code +44-1245-(230000...239999) located in Chelmsford, Essex (ESS), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 1245 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 : 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 : ESS Region Name : Essex City : Chelmsford Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 51.7400 Longitude : 0.4700 ‹ previous : +44-1245-(220000...229999) next › : +44-1245-(240000...249999) Dialling Instructions For trunk calls: 0 1245 230000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 1245 230000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 230000 ~ 239999 (Count: 10,000) Example: +44-1245-230000 / 0044-1245-230000 (01245-230000 / 0-1245-230000) +44-1245-230001 / 0044-1245-230001 (01245-230001 / 0-1245-230001) +44-1245-230002 / 0044-1245-230002 (01245-230002 / 0-1245-230002) +44-1245-230003 / 0044-1245-230003 (01245-230003 / 0-1245-230003) +44-1245-230004 / 0044-1245-230004 (01245-230004 / 0-1245-230004) ...+44-1245-xxxxxx / 0044-1245-xxxxxx (01245-xxxxxx / 0-1245-xxxxxx) ...+44-1245-239995 / 0044-1245-239995 (01245-239995 / 0-1245-239995) +44-1245-239996 / 0044-1245-239996 (01245-239996 / 0-1245-239996) +44-1245-239997 / 0044-1245-239997 (01245-239997 / 0-1245-239997) +44-1245-239998 / 0044-1245-239998 (01245-239998 / 0-1245-239998) +44-1245-239999 / 0044-1245-239999 (01245-239999 / 0-1245-239999)