> cat /dev/github | grep security-tools
discovered 03 Aug 2026

as-ip-blocks

★ 515 via github-topic
→ View on GitHub
as-ip-blocks is a tool that provides daily-updated datasets of autonomous systems (AS) with active BGP prefix announcements, available for download in JSON and plaintext formats. Its primary use case includes network analysis, firewall rule creation, and tracking IP ranges associated with specific organizations, with notable features such as aggregated prefixes, historical change tracking via Git history, and bulk download options.