Area Code +44-5600-(170000...179999) 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 : 170000 Subscriber Number To : 179999 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 : Vodafone Ltd (Thus) 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-(160000...169999) next › : +44-5600-(180000...189999) Dialling Instructions For trunk calls: 0 5600 170000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 5600 170000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 170000 ~ 179999 (Count: 10,000) Example: +44-5600-170000 / 0044-5600-170000 (05600-170000 / 0-5600-170000) +44-5600-170001 / 0044-5600-170001 (05600-170001 / 0-5600-170001) +44-5600-170002 / 0044-5600-170002 (05600-170002 / 0-5600-170002) +44-5600-170003 / 0044-5600-170003 (05600-170003 / 0-5600-170003) +44-5600-170004 / 0044-5600-170004 (05600-170004 / 0-5600-170004) ...+44-5600-xxxxxx / 0044-5600-xxxxxx (05600-xxxxxx / 0-5600-xxxxxx) ...+44-5600-179995 / 0044-5600-179995 (05600-179995 / 0-5600-179995) +44-5600-179996 / 0044-5600-179996 (05600-179996 / 0-5600-179996) +44-5600-179997 / 0044-5600-179997 (05600-179997 / 0-5600-179997) +44-5600-179998 / 0044-5600-179998 (05600-179998 / 0-5600-179998) +44-5600-179999 / 0044-5600-179999 (05600-179999 / 0-5600-179999)