AS-SETs are Internet Routing Registry objects that enable network operators to group related networks, facilitating the management of downstream customer networks and the communication of routing preferences to other networks. Despite their critical role in Border Gateway Protocol (BGP) routing, AS-SETs are largely trust-based and prone to misuse, prompting the need for accurate management to prevent incidents like route leaks. Cloudflare Radar has introduced a public listing to aid network operators in monitoring AS-SET memberships and ensuring data accuracy. The text highlights the potential of future systems like Autonomous System Provider Authorization (ASPA) and RFC9234 to provide more reliable provider authorization and prevent routing misconfigurations. It encourages the adoption of hierarchical AS-SETs to ensure secure ownership and accuracy, emphasizing the importance of maintaining clean AS-SETs for improving network security and reliability.