Area Code +44-5600-(680000...689999) 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 : 680000 Subscriber Number To : 689999 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-(670000...679999) next › : +44-5600-(690000...699999) Dialling Instructions For trunk calls: 0 5600 680000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 5600 680000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 680000 ~ 689999 (Count: 10,000) Example: +44-5600-680000 / 0044-5600-680000 (05600-680000 / 0-5600-680000) +44-5600-680001 / 0044-5600-680001 (05600-680001 / 0-5600-680001) +44-5600-680002 / 0044-5600-680002 (05600-680002 / 0-5600-680002) +44-5600-680003 / 0044-5600-680003 (05600-680003 / 0-5600-680003) +44-5600-680004 / 0044-5600-680004 (05600-680004 / 0-5600-680004) ...+44-5600-xxxxxx / 0044-5600-xxxxxx (05600-xxxxxx / 0-5600-xxxxxx) ...+44-5600-689995 / 0044-5600-689995 (05600-689995 / 0-5600-689995) +44-5600-689996 / 0044-5600-689996 (05600-689996 / 0-5600-689996) +44-5600-689997 / 0044-5600-689997 (05600-689997 / 0-5600-689997) +44-5600-689998 / 0044-5600-689998 (05600-689998 / 0-5600-689998) +44-5600-689999 / 0044-5600-689999 (05600-689999 / 0-5600-689999)