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FYI Blackout Results in Widespread Network Outages Thursday, August 14, 2003 http://www.renesys.com/news/ Summary Widespread power outages in the northeastern U.S. starting on August 14 resulted in corresponding loss of reachability to several portions of the Internet. Backbone networks remained intact using emergency backup power supplies, but many regional networks went offline. The event is can be clearly observed in global routing table size changes, and an evolving geographical timeline of network outages highlights the coverage of the blackout. The route withdrawal timeseries themselves also reveal the effects that the event had on global routing.