PHAS-web is a web based service providing near real time information about possible prefix hijacks. PHAS-web provides 1) origin, lasthop and suballocation set change alarm query relating to a specific prefix in last 24 hours, 2) historical alarm data from July 28, 2006 and 3) alarm statistics in last 24 hours and daily summaries.
Currently, PHAS-web uses BGP data (with 3 hours' delay) from RouteViews oreg collection point.