RDAP / ARIN Lookup
RDAP is the structured successor to whois that regional internet registries such as ARIN use to publish IP address allocations. This lookup returns the block an IP belongs to, the organization holding it, and its abuse contact.
When to use this: You need to report abuse from an IP, or find which organization holds an address block. Command prefix arin:
About the RDAP / ARIN Lookup
Query RDAP for an IP address: the allocation, organization and abuse contact from the regional registry.
FAQ
- What is RDAP?
- The modern, JSON-based replacement for whois run by the internet registries.
- How do I report abuse from an IP?
- Use the abuse contact in the RDAP result for the network that holds the address.