Area Code +44-5588-(770000...779999) located in Corporate Numbers, more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 5588 Subscriber Number From : 770000 Subscriber Number To : 779999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : S (Special) Carrier Name : Voicetec Systems Ltd 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 : Corporate Numbers 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 : +44-5588-(660000...669999) next › : +44-5588-(800000...809999) Dialling Instructions For trunk calls: 0 5588 770000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 5588 770000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 770000 ~ 779999 (Count: 10,000) Example: +44-5588-770000 / 0044-5588-770000 (05588-770000 / 0-5588-770000) +44-5588-770001 / 0044-5588-770001 (05588-770001 / 0-5588-770001) +44-5588-770002 / 0044-5588-770002 (05588-770002 / 0-5588-770002) +44-5588-770003 / 0044-5588-770003 (05588-770003 / 0-5588-770003) +44-5588-770004 / 0044-5588-770004 (05588-770004 / 0-5588-770004) ...+44-5588-xxxxxx / 0044-5588-xxxxxx (05588-xxxxxx / 0-5588-xxxxxx) ...+44-5588-779995 / 0044-5588-779995 (05588-779995 / 0-5588-779995) +44-5588-779996 / 0044-5588-779996 (05588-779996 / 0-5588-779996) +44-5588-779997 / 0044-5588-779997 (05588-779997 / 0-5588-779997) +44-5588-779998 / 0044-5588-779998 (05588-779998 / 0-5588-779998) +44-5588-779999 / 0044-5588-779999 (05588-779999 / 0-5588-779999)