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IP Whois Lookup

The IP Whois Lookup Tool provides detailed Whois information, including network, organization, and abuse contact details for both IPv4 and IPv6 addresses.
1528+
TLDs
693M+
Active Domains
879M+
Domains Tracked
3550M+
WHOIS Records
4933M+
Host Names
13B+
DNS Records
whois Tools
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IP Whois lookup data for 128.91.51.203

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IP Whois Faqs
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What is an IP WHOIS Lookup?
How accurate is the information provided by the IP WHOIS Lookup?
What information can I get from an IP WHOIS Lookup?
Why would I use an IP WHOIS Lookup?
Can I find the exact physical address of an IP address owner?
Is using an IP WHOIS Lookup legal?
What is the difference between a domain WHOIS lookup and an IP WHOIS lookup?
Can I use this tool to check if an IP address is malicious?
Why does the WHOIS information show the ISP instead of the actual owner?
Can I hide my IP address from WHOIS lookups?
How often is WHOIS information updated?
Can I perform a reverse lookup for IP WHOIS data?
Is the IP WHOIS Lookup free to use?
Does the tool support IPv6 addresses?
Can I export the WHOIS results?