The Internet Assigned Numbers Authority (IANA) is an organization responsible for coordinating some of the key elements that keep the Internet running smoothly. It manages the allocation of unique identifiers, such as IP addresses and domain names, ensuring that no two devices on the Internet have the same address. This helps maintain the integrity and functionality of the global network. IANA operates under the oversight of the Internet Corporation for Assigned Names and Numbers (ICANN), which is a nonprofit organization. Together, they work to ensure that the Internet remains a stable and secure environment for users worldwide.