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Explore the dramatic impact of nearly four years of war on Ukraine's internet infrastructure in this 32-minute conference talk from NANOG. Examine how the ongoing Russian invasion has led to a significant exodus of IPv4 addresses from Ukraine, with large amounts of address space formerly originated by prominent Ukrainian Autonomous Systems (ASes) being transferred to major American cloud and service providers through IPv4 brokers. Analyze the resulting dramatic reduction in Ukraine's footprint in the global routing table, representing a new digital consequence of protracted warfare in the modern age. Learn about AT&T's implementation of stricter routing policies that eliminated all Ukrainian IPv4 space originated by AS7018, which had been one of the primary destinations for this address space migration. Gain insights from Doug Madory, Director of Internet Analysis for Kentik and recognized expert in Internet infrastructure analysis, who has been dubbed "The Man who can see the Internet" by The Washington Post for his work in identifying significant developments in Internet structure and is regularly quoted by major news outlets on topics ranging from national blackouts to BGP hijacks.
