CAIDA : research : topology : as_core_networkSee the IPv4 and IPv6 AS Core in 2020 for details of our latest AS Core 2020 visualization, and download a poster of the latest AS Core visualization. AS Core 2020 data source and analysis AS Core 2020 Poster About the AS Core visualizations Data Source CAIDA's AS Core visualization represents a macroscopic snapshot of IPv4 and IPv6 Internet topology samples captured over the course of a year. The
