Area Code +44-56-(00830000...00839999) located in VoIP, more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 56 Subscriber Number From : 00830000 Subscriber Number To : 00839999 National Destination Code Length : 2 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 : 51.5000 Longitude : -0.1300 ‹ previous : +44-56-(00820000...00829999) next › : +44-56-(00840000...00849999) Dialling Instructions For trunk calls: 0 56 00830000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 56 00830000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 00830000 ~ 00839999 (Count: 10,000) Example: +44-56-00830000 / 0044-56-00830000 (056-00830000 / 0-56-00830000) +44-56-00830001 / 0044-56-00830001 (056-00830001 / 0-56-00830001) +44-56-00830002 / 0044-56-00830002 (056-00830002 / 0-56-00830002) +44-56-00830003 / 0044-56-00830003 (056-00830003 / 0-56-00830003) +44-56-00830004 / 0044-56-00830004 (056-00830004 / 0-56-00830004) ...+44-56-xxxxxxxx / 0044-56-xxxxxxxx (056-xxxxxxxx / 0-56-xxxxxxxx) ...+44-56-00839995 / 0044-56-00839995 (056-00839995 / 0-56-00839995) +44-56-00839996 / 0044-56-00839996 (056-00839996 / 0-56-00839996) +44-56-00839997 / 0044-56-00839997 (056-00839997 / 0-56-00839997) +44-56-00839998 / 0044-56-00839998 (056-00839998 / 0-56-00839998) +44-56-00839999 / 0044-56-00839999 (056-00839999 / 0-56-00839999)