ASN Lookup
Look up Autonomous System Number details for any IP address or ASN. View owner, country, IP ranges, and network routing information.
Run a check to see results
API
POST /api/v1/network/asn5(1 vote)
What is ASN Lookup?
The ASN lookup retrieves Autonomous System Number details for any IP address or ASN. It shows the network owner, country of registration, allocated IP prefix ranges, and routing information. This is useful for network analysis, understanding internet infrastructure, and identifying which organization controls an IP block.