How to Lookup IP Address Ownership using ARIN, RIPE, and APNIC WHOIS
Perform IP WHOIS lookups across global Regional Internet Registries (RIRs) to trace network blocks and ISP allocation.
Querying Regional Internet Registries
IP WHOIS data maintained by ARIN, RIPE NCC, APNIC, LACNIC, and AFRINIC reveals ASN details, CIDR blocks, and network abuse contacts.