Area Code +44-300-(1990000...1999999) located in National Number, more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 300 Subscriber Number From : 1990000 Subscriber Number To : 1999999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : N (N) Carrier Name : Telecoms World Direct Ltd 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) City : National Number Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 51.5000 Longitude : -0.1300 ‹ previous : +44-300-(1330000...1339999) next › : +44-300-(2000000...2009999) Dialling Instructions For trunk calls: 0 300 1990000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 300 1990000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 1990000 ~ 1999999 (Count: 10,000) Example: +44-300-1990000 / 0044-300-1990000 (0300-1990000 / 0-300-1990000) +44-300-1990001 / 0044-300-1990001 (0300-1990001 / 0-300-1990001) +44-300-1990002 / 0044-300-1990002 (0300-1990002 / 0-300-1990002) +44-300-1990003 / 0044-300-1990003 (0300-1990003 / 0-300-1990003) +44-300-1990004 / 0044-300-1990004 (0300-1990004 / 0-300-1990004) ...+44-300-xxxxxxx / 0044-300-xxxxxxx (0300-xxxxxxx / 0-300-xxxxxxx) ...+44-300-1999995 / 0044-300-1999995 (0300-1999995 / 0-300-1999995) +44-300-1999996 / 0044-300-1999996 (0300-1999996 / 0-300-1999996) +44-300-1999997 / 0044-300-1999997 (0300-1999997 / 0-300-1999997) +44-300-1999998 / 0044-300-1999998 (0300-1999998 / 0-300-1999998) +44-300-1999999 / 0044-300-1999999 (0300-1999999 / 0-300-1999999)