Area Code +44-5600-(800000...809999) located in VoIP, more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 5600 Subscriber Number From : 800000 Subscriber Number To : 809999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : V (VoIP, Location Independent fixed land 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) City : VoIP 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 : +44-5600-(790000...799999) next › : +44-5600-(810000...819999) Dialling Instructions For trunk calls: 0 5600 800000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 5600 800000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 800000 ~ 809999 (Count: 10,000) Example: +44-5600-800000 / 0044-5600-800000 (05600-800000 / 0-5600-800000) +44-5600-800001 / 0044-5600-800001 (05600-800001 / 0-5600-800001) +44-5600-800002 / 0044-5600-800002 (05600-800002 / 0-5600-800002) +44-5600-800003 / 0044-5600-800003 (05600-800003 / 0-5600-800003) +44-5600-800004 / 0044-5600-800004 (05600-800004 / 0-5600-800004) ...+44-5600-xxxxxx / 0044-5600-xxxxxx (05600-xxxxxx / 0-5600-xxxxxx) ...+44-5600-809995 / 0044-5600-809995 (05600-809995 / 0-5600-809995) +44-5600-809996 / 0044-5600-809996 (05600-809996 / 0-5600-809996) +44-5600-809997 / 0044-5600-809997 (05600-809997 / 0-5600-809997) +44-5600-809998 / 0044-5600-809998 (05600-809998 / 0-5600-809998) +44-5600-809999 / 0044-5600-809999 (05600-809999 / 0-5600-809999)