Persistent routing loops on the Internet are a common misconfiguration that can lead to packet loss, reliability issues, and can even exacerbate denial of service attacks. In this paper, we perform high-TTL traceroutes to the entire IPv4 Internet from a vantage point in order to enumerate routing loops and validate our results from a different vantage point. We find over 320k /24 subnets with at least one routing loop present.