IP Addressing
Many different organizations contribute to the coordination and management of the Internet. Some concentrate on technical standards, others on website addresses, APNIC's area of focus is on numeric Internet resources - IP addressing and Autonomous System numbers.
It is not the only organization responsible for management of these resources. the four other Regional Internet Registries (RIRs) perform a similar function for their own region. IANA, which has a broader set of interests that includes Domain Name and protocol assignments, also plays a part in the global IP and AS number space as the repository for unallocated resources. As they are consumed by the community, IANA, allocates additional numeric resources to the RIRs for distirbution.
The Number Resource Organization (NRO), a body representing the five RIRs, also has a centralised coordinating role to protect the unallocated Number Resource pool, promote and protect the bottom-up policy development process, and to act as a focal point for Internet community input into the RIR system.