Today, large organizations deal with the challenge of running their infrastructure across many networks and namespaces due to the use of cloud and hosting services, legacy environments and acquisitions. This can make it difficult for an organization to maintain visibility of its Internet-facing assets and an ability to track down systems that pose a risk to its security posture. The OWASP Amass Project attempts to help organizations perform network mapping of its attack surface and better understand how its assets are distributed across the networks of trusted partners. During this talk, contributors to the project will discuss how OWASP Amass takes subdomain enumeration to the next level, providing both attackers and defenders better visibility.