| Table of ContentsIntroduction  The Internet Registry System Overview What are IP Addresses anyway?  What’s in a (Domain) Name? Where are IP Addresses used? Address Architecture - History Address Architecture - Classful Address Architecture - Classful Address Architecture - Classless Classless Addressing - Examples CIDR Aggregation Overview Address ManagementChallenges in 1992  Address Management - Objectives RIRs - Origins RIR Model - Structure RIR Funding Model RIR Activities - Public Services RIR Activities - Member Services Global Policy Development RIR Policy Process RIR Policy Implementation RIR Service Regions  APNIC ARIN RIPE NCC IPv4 Utilisation Rate in 2000 IPv4 Unallocated IPv6 Allocations RIRs in ICANN Context ICANN ASO | Author: Mirjam  Email:  webmaser@ripe.net   Home Page:  www.ripe.net  |