IP WHOIS Lookup & BGP Tool
This IP WHOIS lookup tool shows IP ownership, ASN details, organization name, country, and registry information in real time.
Run a BGP query.
What this tool does
This tool queries Regional Internet Registries (RIRs) and BGP routing tables to identify the owner of an IP address or Autonomous System Number (ASN). It retrieves registration details, contact information, and the current BGP announcement path. This provides visibility into network ownership and routing topology without requiring CLI access to a looking glass.
When engineers use this
- Investigating the source of malicious traffic or DDoS attacks during incident response.
- Verifying BGP peering partners and validating ASN ownership before establishing connectivity.
- Troubleshooting routing anomalies or reachability issues across the public internet.
- Auditing IP address allocations to ensure accurate registration data.
How to interpret the results
- ASN: The Autonomous System Number announcing the prefix, which identifies the upstream provider.
- Org/Owner: The legal entity responsible for the IP block or ASN.
- Country: The registered physical location of the organization.
What is an ASN?
An Autonomous System Number (ASN) is a unique identifier for a collection of IP networks managed by a single organization. ASNs are fundamental to the Border Gateway Protocol (BGP) routing.
How BGP Routing Works
BGP is the postal service of the Internet. It determines the most efficient routes for data to travel across the complex web of autonomous systems. This utility visualizes these paths and ownership details.