Area Code +44-300-(3390000...3399999) 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 : 3390000 Subscriber Number To : 3399999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : N (N) Carrier Name : London Central Communications 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-(3340000...3349999) next › : +44-300-(3430000...3439999) Dialling Instructions For trunk calls: 0 300 3390000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 300 3390000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3390000 ~ 3399999 (Count: 10,000) Example: +44-300-3390000 / 0044-300-3390000 (0300-3390000 / 0-300-3390000) +44-300-3390001 / 0044-300-3390001 (0300-3390001 / 0-300-3390001) +44-300-3390002 / 0044-300-3390002 (0300-3390002 / 0-300-3390002) +44-300-3390003 / 0044-300-3390003 (0300-3390003 / 0-300-3390003) +44-300-3390004 / 0044-300-3390004 (0300-3390004 / 0-300-3390004) ...+44-300-xxxxxxx / 0044-300-xxxxxxx (0300-xxxxxxx / 0-300-xxxxxxx) ...+44-300-3399995 / 0044-300-3399995 (0300-3399995 / 0-300-3399995) +44-300-3399996 / 0044-300-3399996 (0300-3399996 / 0-300-3399996) +44-300-3399997 / 0044-300-3399997 (0300-3399997 / 0-300-3399997) +44-300-3399998 / 0044-300-3399998 (0300-3399998 / 0-300-3399998) +44-300-3399999 / 0044-300-3399999 (0300-3399999 / 0-300-3399999)