Original sentence: A regional Internet registry (RIR) is an organization that manages the allocation and registration of Internet numbers within a particular region of the world.AfriNIC for Africa.American Registry for Internet Numbers (ARIN) for North America and parts of the Caribbean region.Asia-Pacific Network Information Centre (APNIC) for Asia, Australia, and neighboring countries.Internet numbers include IP addresses and autonomous system (AI) numbers.RIPE NCC for Europe, the Middle East, and Central Asia.There are five RIRs:
Edited sentence: A Regional Internet Registry (RIR) is an organization overseeing the allocation and registration of Internet number resources within a particular region of the world.African Network Information Centre (AfriNIC) for Africa.American Registry for Internet Numbers (ARIN) for North America and parts of the Caribbean.Asia-Pacific Network Information Centre (APNIC) for Asia and the Pacific region.RIPE Network Coordination Centre (RIPE NCC) for Europe, the Middle East and Central Asia.Resources include IP addresses (both IPv4 and IPv6) and autonomous system numbers (for use in BGP routing).There are currently five RIRs in operation: