Autonomous System (AS)
AssessTechniques
An independently operated network domain identified in Internet routing policy and BGP.
Why it's here
Placed in Assess: 2 article(s) of evidence from 1 source(s), led by research-stage coverage, with 0 in the last 30 days. Confidence 36%.
Evidence (2)
- 6Cloudflare Blog·8/18/2026researchCloudflare tracks RFC 9234 adoption in BGP
Cloudflare says it has developed a method to measure adoption of RFC 9234 by observing which peers send the OTC attribute to its network. In the process, it found that two large Tier-1 networks strip OTC from forwarded routes, limiting route-leak prevention for early adopters.
- 8Cloudflare Blog·6/3/2026researchCloudflare on Enforcing the First AS in BGP Paths
Cloudflare describes route hijacks that appear to rely on forged BGP AS_PATHs, including cases where attackers inserted implausible upstream ASes to misdirect traffic and hide their origin. The company argues that validating the first AS in an advertised route could help detect these attacks and says it stress-tested major networks to evaluate their BGP implementations.