Area Code +44-5555-(370000...379999) located in Corporate Numbers, more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 5555 Subscriber Number From : 370000 Subscriber Number To : 379999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : S (Special) Carrier Name : 24 Seven 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 : Corporate Numbers Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 51.5100 Longitude : -0.1300 ‹ previous : +44-5555-(100000...109999) next › : +44-5555-(400000...409999) Dialling Instructions For trunk calls: 0 5555 370000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 5555 370000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 370000 ~ 379999 (Count: 10,000) Example: +44-5555-370000 / 0044-5555-370000 (05555-370000 / 0-5555-370000) +44-5555-370001 / 0044-5555-370001 (05555-370001 / 0-5555-370001) +44-5555-370002 / 0044-5555-370002 (05555-370002 / 0-5555-370002) +44-5555-370003 / 0044-5555-370003 (05555-370003 / 0-5555-370003) +44-5555-370004 / 0044-5555-370004 (05555-370004 / 0-5555-370004) ...+44-5555-xxxxxx / 0044-5555-xxxxxx (05555-xxxxxx / 0-5555-xxxxxx) ...+44-5555-379995 / 0044-5555-379995 (05555-379995 / 0-5555-379995) +44-5555-379996 / 0044-5555-379996 (05555-379996 / 0-5555-379996) +44-5555-379997 / 0044-5555-379997 (05555-379997 / 0-5555-379997) +44-5555-379998 / 0044-5555-379998 (05555-379998 / 0-5555-379998) +44-5555-379999 / 0044-5555-379999 (05555-379999 / 0-5555-379999)