Area Code +44-1438-(400000...409999) located in Stevenage, Hertfordshire (HRT), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 1438 Subscriber Number From : 400000 Subscriber Number To : 409999 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 : Syntec 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 : HRT Region Name : Hertfordshire City : Stevenage Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 51.9000 Longitude : -0.2000 ‹ previous : +44-1438-(390000...399999) next › : +44-1438-(410000...410999) Dialling Instructions For trunk calls: 0 1438 400000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 1438 400000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 400000 ~ 409999 (Count: 10,000) Example: +44-1438-400000 / 0044-1438-400000 (01438-400000 / 0-1438-400000) +44-1438-400001 / 0044-1438-400001 (01438-400001 / 0-1438-400001) +44-1438-400002 / 0044-1438-400002 (01438-400002 / 0-1438-400002) +44-1438-400003 / 0044-1438-400003 (01438-400003 / 0-1438-400003) +44-1438-400004 / 0044-1438-400004 (01438-400004 / 0-1438-400004) ...+44-1438-xxxxxx / 0044-1438-xxxxxx (01438-xxxxxx / 0-1438-xxxxxx) ...+44-1438-409995 / 0044-1438-409995 (01438-409995 / 0-1438-409995) +44-1438-409996 / 0044-1438-409996 (01438-409996 / 0-1438-409996) +44-1438-409997 / 0044-1438-409997 (01438-409997 / 0-1438-409997) +44-1438-409998 / 0044-1438-409998 (01438-409998 / 0-1438-409998) +44-1438-409999 / 0044-1438-409999 (01438-409999 / 0-1438-409999)