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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
LookupHistoricalReverseIP LookupASN Lookup

IP Whois lookup data for 217.9.91.172

Try these examples:
IP Whois Faqs
Enhance your apps with industry leading web scraping and crawling.
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?