From Ukraine to the Cloud: Stories of IPv4 Migration
This post expands on our analysis from last year that revealed that as much as 20% of IPv4 space has migrated out of Ukraine in the years following the Russian invasion in February 2022. This update reveals that AT&T (a popular destination for Ukrainian IPs) has since implemented a policy ridding itself of customers using AS7018 to originate their routes, often to support residential proxies.