IANA vs ICANN comparison

What is IANA

Internet Assigned Numbers Authority (IANA) is a global coordination of the DNS root department within the Internet Corporation for Assigned Names and Numbers (ICANN).

What Does IANA Do?

They are responsible for maintaining the repository of Internet standards and managing IP address providers, TLD information databases, and other Internet protocol resources as a global Internet organization.

IANA maintains the number of registries and is responsible for the allocation
of Internet Protocol addresses (IPv4 and IPv6) and autonomous system
numbers to the five Regional Internet Registries (RIRs).

How to Validate IANA Personal Domain Data?

To validate your IANA WHOIS server personal data for your domain name then you can use this IANA tool that is provided data using the WHOIS protocol on port 43. This web gateway will query this server and return the results.

What is ICANN

ICANN stands for Internet Corporation for Assigned Names and Numbers. It’s a private, non-government, nonprofit corporation responsible for coordinating the maintenance and procedures of several databases related to the namespaces and numerical spaces of the Internet, ensuring the network’s stable and secure operation. The IANA previously performed these services.

What Does ICANN Do?

ICANN works as a multi-stakeholder model and plays a critical role in managing some Internet infrastructure at a global level, and includes broad representation from governments, registries, registrars, commercial users, non-commercial users, and individual Internet users.

They independently operate the DNS system, IP address, and other protocol numbers and manage the public domain registrar and maintain all domains with all the related information stored in their database exception .INT extension which is used for intergovernmental agencies with international treaties.

How to Show ICANN Domain Registration Data?

The official ICANN registration data lookup tool gives you the ability to look up the current registration data for your domain names and other Internet number resources including domain information, contact information, abuse contacts, registrant details, and other administrative and technical information.

ICANN registration data lookup tool result
(ICANN registration data lookup tool result for websiteguidelines.com)

What is the Difference Between IANA and ICANN?

The main difference between IANA and ICANN is IANA perform all their operation as a part of the ICANN. Where ICANN is an independent organization responsible for coordinating the maintenance and procedures of Internet infrastructures at a global level.

Their functions include management of TLD information, Internet number resources, domain names, domain registries, domain registrar, DNS system, allocation of IP address space, and maintaining IP address provider, protocol parameters, and more.


Hope this IANA vs ICANN comparison guide helps beginners to better understand them.

To learn more about their functions please follow this official statement by ICANN and IANA.

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