The American Registry for Internet Numbers (ARIN) is a nonprofit organization responsible for managing the distribution of Internet Protocol (IP) addresses in North America. Established in 1997, ARIN allocates and maintains IP address resources, ensuring that they are distributed fairly and efficiently among Internet service providers and organizations. ARIN also plays a key role in promoting the responsible use of IP addresses and supporting the growth of the Internet. It provides various services, including training, policy development, and community engagement, to help stakeholders understand and navigate the complexities of Internet number resources.