Our database contains information about the public IPv4 and IPv6 addresses, networks and domains owned by companies and organizations across the world along with city-level IP geolocation data and autonomous system information.
Use the free tools below to query the database or check out our API.
Your IP Info
Chicago, Illinois, United StatesCoordinates: 41.8781 N, -87.6298 E
Organization Lookup
Enter the name of a company, organization, branch, institution, or person to view information about the public networks and domains they own or operate. Results are subdivided by country.
IP Address Lookup
Enter an IPv4 or IPv6 address to view its geolocation, information about the company or organization that owns it and other public networks and addresses they own or operate.
IP to Domains Lookup
Reverse DNS
Enter an IPv4 or IPv6 address to view the domain names resolving to this address.
Domain to IPs Lookup
Forward DNS
Enter a domain name to view all the IPv4 and IPv6 addresses that point to it.
Network Lookup
Enter a partial or full network name (netname) to find matching organizations, networks and IP addresses.
ASN Lookup
Enter an Autonomous System Number to view information about the company that owns it and a list of the public networks announced.
Top Organizations
Top 10 largest companies according to the number of IPv4 addresses they own or operate. (see more)
United States Department of Defense (DoD) (300,694,528) China Telecom Co., Ltd (152,019,663) Amazon.com, Inc (119,302,643) Microsoft Corporation (97,174,985) AT&T Enterprises, LLC (95,444,917) Verizon Business (92,504,365) Comcast Cable Communications, LLC (92,310,946) RIPE Network Coordination Centre (80,664,832) Amazon Technologies Inc (78,933,200) China Unicom (68,487,894)
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