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Free IP WHOIS Lookup

Enter an IP address to check who owns it and retrieve associated information such as registration date, location, and network details.

Use any IPV4 / IPV6 Address or your own IP

IP WHOIS - Check IP Address Registration and Ownership Details

Whether you are a tech expert, a network administrator, or someone interested in learning more — our tool is here to assist you. It is designed to uncover important information about “any IP address” or “your own IP address” in real time.

With our IP WHOIS Lookup Tool — you can easily find details like where an IP address comes from, who owns it, and essential network information. It's a valuable tool for troubleshooting network issues, analyzing cybersecurity threats, or satisfying your curiosity.

From discovering in-depth details about IP ranges, network types, registration dates, and update to checking associate autonomous system numbers — it helps you at every step. Use it to determine which organizations manage respective IP addresses, explore how different networks are connected, and understand their relationships.

It also provides a direct means to access abusive contact details related to IP ranges. This way, you can easily take strict action against online abuse or security issues.

How to Perform IP WHOIS Lookup?

It is as easy as you think. Simply enter the IP Address into the search bar and click “Lookup”. Our IP lookup WHOIS tool will take a second to display all the associated information on your screen.


Here are some key terms you need to know to understand the results obtained from IP WHOIS Lookup:

NetRange/CIDR: This entry covers the range of IP addresses and their CIDR notation.

NetName: The name associated with the IP range.

NetHandle: A unique identifier for this network block.

Parent: The parent network block that contains the respective IP range.

NetType: Describes the type of network registration.

OriginAS: The Autonomous System (AS) associated with the respective IP range, if applicable.

Organization: The organization or entity that manages the respective IP range.

RegDate: The registration date for the respective IP range (domain name).

Updated: The last update date for the respective IP range.

Ref: A link to the registry for further information about the respective IP range.

ResourceLink: Links to external resources for querying additional information.

OrgName: The name of the organization responsible for the respective IP range.

OrgId: A unique identifier for the organization.

Address: The organization's address details, including country or city.

OrgTechHandle: The technical contact handle for the organization.

OrgTechName: The name of the technical contact for the organization.

OrgTechPhone: The phone number of the technical contact.

OrgTechEmail: The email address of the technical contact.

OrgTechRef: A link to the registry for more information about the technical contact.

OrgAbuseHandle: The abuse contact handle for the organization.

OrgAbuseName: The name of the abuse contact for the organization.

OrgAbusePhone: The phone number of the abuse contact.

OrgAbuseEmail: The email address of the abuse contact.

OrgAbuseRef: A link to the registry for more information about the abuse contact.

Found a referral: Indicates if there is a referral to another WHOIS database.

Database query service: Information about the specific WHOIS database query service.

Abuse contact: Specifies the contact information for reporting abuse or security issues related to the respective IP range.

Route: Specific routing information for the respective IP range.

It is important to note that you will get the IP address owner's contact information from the IP WHOIS results. The owner can be the Internet Service Provider (ISP) information to whom the IP address is assigned.

Why Use Our WHOIS IP Lookup Tool?

IP WHOIS Lookup tool has been built to deliver an exceptional user experience, facilitating you with a reliable and lightning-fast way to check every detail that matters about an IP address owner. It is user-friendly, efficient, and secure — just as you need. Here are some reasons for which you can use it to your advantage:

Accurate Geolocation

Our IP WHOIS Lookup Tool provides estimated geolocation information for any IP address. It retrieves and displays the country, city, and even mailing address associated with the IP. This helps identify the origin of suspicious activities, analyze traffic patterns, and ensure absolute compliance with regional regulations. You can get IP's location from several geolocation databases to strengthen your results.

Detailed Network Information

You can use it to obtain details about the organization that holds the IP address, including their name, contact information, and administrative or technical personnel responsible for the network. This data enables efficient communication and collaboration with relevant professionals during network troubleshooting.

Registrar and Registration Details

It provides essential information about the registrar responsible for the IP address registration. You can access the registrar's name, website, and contact information. It also reveals the registration and expiration dates of the IP, allowing network administrators to track the status of their resources and plan accordingly.

Autonomous System (AS) Information

If you need Autonomous System information associated with an IP address, our advanced tool will cover it. It will display data, such as AS number, organization name, and routing policies. Understanding the AS infrastructure will help you to gain insights into the network's overall structure and detect routing issues.

Abuse Contact Details

In cases where suspicious or malicious activities are identified, our tool helps you to access abusive contact details—this way, it allows you to report any abuse or security incidents associated with the IP address range. You can leverage it to maintain network integrity and ensure timely actions against potential threats.

Get the Inside Scoop About IP WHOIS!

Here’s every key detail you’d need to know about IP WHOIS.

What is a WHOIS database?

The WHOIS database is a publicly accessible repository containing information about IP addresses, domain names, and registered owners. It provides details such as the organization or individual associated with the IP address, contact information, registration dates, and administrative details.

What is IP Address ownership?

IP address ownership refers to the legal and administrative control over an internet protocol address. It signifies that a particular individual, organization, or entity has the rights and responsibilities associated with using and managing a specific IP address or range of IP addresses. It is typically determined by the allocation and registration process by the Internet Assigned Numbers Authority (IANA) and the regional Internet registries (RIRs) they oversee.

How are IP addresses allocated and managed?

Someone somewhere owns an IP address that is in use on the internet. An Internet Assigned Numbers Authority (IANA) is responsible worldwide for managing the allocation of IP addresses. The organization is responsible for reporting the information, for example, IP address, root zone management in DNS, ASNs allocation, and other Internet numbers and Internet Protocol-related symbols.

The Internet Assigned Numbers Authority further assigns Internet number resources (IP addresses and AS numbers) to regional Internet registries (RIRs). These registries are responsible for allocating and registering Internet number resources within a specific region of the globe.

Each RIR has its regional rules and policies and follows those to assign the IP addresses and AS numbers to their customers, including ISPs and end-user organizations. Every IP address that floats on the global public internet is administrated by one of the five RIRs, each working within a specific region of the globe. The RIRs and their regulatory areas are as follows.

  • African Network Information Centre (AfriNIC) Manages IP addresses for the African continent.
  • American Registry for Internet Numbers (ARIN) Manages IP addresses for the United States, Canada, and many Caribbean and North Atlantic islands.
  • Asia-Pacific Network Information Centre (APNIC) Manages IP addresses for Asia, Australia, and surrounding Countries.
  • Latin America and Caribbean Network Information Centre (LACNIC) Manages IP addresses for Latin America and the Caribbean.
  • Réseaux IP Européens Network Coordination Centre (RIPE NCC) Manages IP addresses for Europe, the Middle East, and the former USSR.

Suppose an RIR assigns a block of IP addresses to one of its ISP in the United States. The same ISP further assigns a sub-block of those IP addresses to one of their customer in Canada. The IP address's location still is reported as being in the United States.

Is IP WHOIS the same as WHOIS Domain?

No. IP WHOIS and WHOIS Domain lookup are not the same. IP WHOIS is used to obtain information about an IP address's ownership and registration details. In contrast, domain WHOIS provides information about a domain name's ownership and registration details. While both processes involve querying a WHOIS database, they retrieve information about different Internet resources.

What are the objectives (purposes) of an IP WHOIS lookup?

IP WHOIS Lookup helps you fulfill multiple objectives that include:

    • Identifying the owner of an IP address 
    • Identifying the country/region associated with IP
    • Investigating network suspicious activities
    • Helping network administrators troubleshoot network issues.

Can I perform an IP WHOIS lookup for both IPv4 and IPv6 addresses?

Yes, our IP WHOIS lookup supports both IPv4 and IPv6 addresses. Using our IP WHOIS lookup tool, you can obtain WHOIS information for both IP addresses. 

Does IP WHOIS lookup provide information about an IP address from the private network?

The IP WHOIS lookup tool and WHOIS databases do not provide any information about the IP addresses that belong to private (secured by proxy servers or VPNs) networks.

Can I see the WHOIS details of the end user?

The WHOIS IP address results provide the organization or individual's name against which the IP is registered in the IP WHOIS Database. Typically, the owner is none other than the internet service provider (ISP). It’s possible to get the end-user information only if the ISP allows it, which usually doesn’t happen.

Is IP WHOIS lookup legal?

Yes. Performing an IP WHOIS lookup is legal. This is because the information obtained through it is publicly available, and anyone can access it. However, it's essential to respect privacy regulations and use the obtained information responsibly and within the boundaries of the law.