All-in-one IPv4 / IPv6 Address Lookup

AS16509 (Amazon.com, Inc.) manages the 57.104.0.0/13 prefix block (approximately 524288 addresses) in the Datacenter / Cloud category. Amazon Web Services (AWS), the world's largest public cloud spanning 30+ regions. The IP 57.106.173.211 resides in Germany Bavaria (timezone America/Chicago); its position within this block determines routing behavior and connectivity characteristics.

No reverse DNS (PTR) record is configured, which is common for dynamically assigned or CGNAT'd addresses but limits reverse verification capability. Datacenter IPs generally have properly configured PTR records; the absence here is unusual and may indicate a legacy allocation or misconfiguration.

Based on local classification and Spamhaus real-time reputation, no blacklist entries detected, associated risks: datacenter. The Cloud server / datacenter category indicates this IP is part of normal Datacenter / Cloud infrastructure and carries low inherent risk. As a datacenter address, risk-control focus should be on request patterns (user-agent, frequency, behavior chains) rather than the IP alone.

Recommendation: 57.106.173.211 is a datacenter/cloud IP — it may host legitimate services (APIs, CDNs, bots) or serve as an attack vector. Evaluate each request context: allow known API integrations, challenge or block unknown automated traffic, and never trust the client-reported IP for geo-based decisions.

Datacenter IPs are frequently used for legitimate API integrations, automated monitoring and infrastructure tasks — evaluate each request context before blocking. If you need to distinguish automation from real-user traffic, focus on request headers (User-Agent, Accept) and behavioral patterns rather than IP reputation alone.