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Cornell University

IP Addresses and Subnets at Cornell

This article applies to: DNS

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Host Registration

Network administrators are required to register all devices on their networks (desktop workstations, servers, printers, etc.). See How to Comply with Network Registration Policy for more information.

Global Address Blocks Owned and Managed by Cornell 

Cornell owns and manages the following publicly routable global address blocks:

  • 128.84.0.0/16
  • 128.253.0.0/16
  • 132.236.0.0/16
  • 192.35.82.0/24
  • 192.122.235.0/24
  • 192.122.236.0/24
  • 2620:110:d000::/44

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