Area Code +44-56-(01830000...01839999) 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 : 01830000 Subscriber Number To : 01839999 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 : FTC Telecom Limited 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-(01820000...01829999) next › : +44-56-(01840000...01849999) Dialling Instructions For trunk calls: 0 56 01830000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 56 01830000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 01830000 ~ 01839999 (Count: 10,000) Example: +44-56-01830000 / 0044-56-01830000 (056-01830000 / 0-56-01830000) +44-56-01830001 / 0044-56-01830001 (056-01830001 / 0-56-01830001) +44-56-01830002 / 0044-56-01830002 (056-01830002 / 0-56-01830002) +44-56-01830003 / 0044-56-01830003 (056-01830003 / 0-56-01830003) +44-56-01830004 / 0044-56-01830004 (056-01830004 / 0-56-01830004) ...+44-56-xxxxxxxx / 0044-56-xxxxxxxx (056-xxxxxxxx / 0-56-xxxxxxxx) ...+44-56-01839995 / 0044-56-01839995 (056-01839995 / 0-56-01839995) +44-56-01839996 / 0044-56-01839996 (056-01839996 / 0-56-01839996) +44-56-01839997 / 0044-56-01839997 (056-01839997 / 0-56-01839997) +44-56-01839998 / 0044-56-01839998 (056-01839998 / 0-56-01839998) +44-56-01839999 / 0044-56-01839999 (056-01839999 / 0-56-01839999)