This article explains how to find the owner of an IP address, whether you know the IP address or not. It also includes instructions on how to find an IP address using the Windows Command Prompt.
Finding the owner of an IP address
Every Internet Protocol (IP) address used on the Internet is registered to an owner. The owner can be an individual or a representative of a larger organization, such as an Internet Service Provider. Many websites do not hide their ownership, so you can look up this public information to find the owner. However, some services allow the owner to remain anonymous. As a result, their contact information and name are not easily found.
The ARIN WHOIS service queries an IP address from the American Registry for Internet Numbers (ARIN) and displays who owns the IP address and other information, such as a contact number, a list of other IP addresses in that range with the same owner, and registration dates.
For example, for the IP address 216.58.194.78, ARIN WHOIS indicates that Google is the owner.
