Area Code +44-5600-(570000...579999) 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 : 570000 Subscriber Number To : 579999 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 : COLT Technology Services 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-(560000...569999) next › : +44-5600-(580000...589999) Dialling Instructions For trunk calls: 0 5600 570000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 5600 570000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 570000 ~ 579999 (Count: 10,000) Example: +44-5600-570000 / 0044-5600-570000 (05600-570000 / 0-5600-570000) +44-5600-570001 / 0044-5600-570001 (05600-570001 / 0-5600-570001) +44-5600-570002 / 0044-5600-570002 (05600-570002 / 0-5600-570002) +44-5600-570003 / 0044-5600-570003 (05600-570003 / 0-5600-570003) +44-5600-570004 / 0044-5600-570004 (05600-570004 / 0-5600-570004) ...+44-5600-xxxxxx / 0044-5600-xxxxxx (05600-xxxxxx / 0-5600-xxxxxx) ...+44-5600-579995 / 0044-5600-579995 (05600-579995 / 0-5600-579995) +44-5600-579996 / 0044-5600-579996 (05600-579996 / 0-5600-579996) +44-5600-579997 / 0044-5600-579997 (05600-579997 / 0-5600-579997) +44-5600-579998 / 0044-5600-579998 (05600-579998 / 0-5600-579998) +44-5600-579999 / 0044-5600-579999 (05600-579999 / 0-5600-579999)