🚨 Bad ASN List: A curated blocklist of 2,200+ ASNs tied to VPNs, datacenters, hosting providers, scanners, and infrastructure commonly associated with automated abuse.
GitHub: https://github.com/bountyyfi/bad-asn-list
The list is designed to help reduce scraping, credential stuffing, bot traffic, anonymous abuse, and other unwanted activity by identifying suspicious network sources at the ASN level.
Includes categories covering:
• VPN and proxy providers
• Major and budget hosting
• Bulletproof hosting
• Known scanner infrastructure
• DDoS and abuse sources
• Infrastructure linked to ransomware and cybercrime activity
The repo currently contains 2,234 ASNs and includes implementation examples for Cloudflare Workers, Node.js, Flask, iptables, and nftables.

GitHub: https://github.com/bountyyfi/bad-asn-list
The list is designed to help reduce scraping, credential stuffing, bot traffic, anonymous abuse, and other unwanted activity by identifying suspicious network sources at the ASN level.
Includes categories covering:
• VPN and proxy providers
• Major and budget hosting
• Bulletproof hosting
• Known scanner infrastructure
• DDoS and abuse sources
• Infrastructure linked to ransomware and cybercrime activity
The repo currently contains 2,234 ASNs and includes implementation examples for Cloudflare Workers, Node.js, Flask, iptables, and nftables.

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