IP WHOIS Lookup
See who owns an IP address — the organization, network range, ASN, registry and abuse contact.
Network
Provider
Contacts
WHOIS data comes from the official RDAP registries via our server; ISP/ASN details from the public ipwho.is database.
How to use the IP WHOIS Lookup
Enter an IP or domain
IPv4, IPv6 or a website.
We query RDAP
The official registry database.
See the owner
Network, ASN, contacts and dates.
Why use our IP WHOIS Lookup?
Owner
Organization and network name.
IP range
Start, end and CIDR blocks.
ASN & ISP
Autonomous system and provider.
Registry
ARIN, RIPE, APNIC, LACNIC or AFRINIC.
Abuse contact
Where to report spam or attacks.
Dates
Registration and last update.
Frequently asked questions
Everything you need to know about the IP WHOIS Lookup.
Back to the toolWhat is IP WHOIS?
A public record showing which organization an IP address block is assigned to, maintained by regional internet registries.
Can I find a person from an IP?
No. WHOIS shows the network owner (usually an ISP or company), not individual users.
What is an ASN?
An Autonomous System Number identifies a network on the internet, like a large ISP or cloud provider.
How do I report abuse from an IP?
Email the abuse contact shown in the results with logs and timestamps.
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