The Research Education Advanced Network New Zealand (REANNZ) provides the pathways and connections for global research and science collaboration. REANNZ designs, builds and operates New Zealandâs high-performance, advanced National Research and Education Network (NREN). REANNZ supports and enables its users to access the network for data intensive research, and provides value add services to enable eResearch collaboration and data transfers around New Zealand and within the global NREN ecosystem.