ASN Lookup for Cloud Abuse Triage

When suspicious activity appears to come from cloud infrastructure, ASN lookup can help you expand from one IP into the broader provider context.

Why it matters

This helps analysts understand whether an event is isolated, part of a larger provider footprint, or worth correlating with more addresses and hostnames.

Recommended workflow

• Start with IP lookup on the suspicious address.
• Expand into ASN lookup to identify the broader network operator.
• Use reverse DNS and domain-side checks if related infrastructure is involved.
• Compare results against known cloud-provider ASN collections when appropriate.

Recommended next steps

Use IP lookup and ASN lookup together whenever one address alone does not provide enough provider context.