Topics Map > University of Chicago > IT Services > Phones & Internet Connections > Wireless Data Networking
Topics Map > University of Chicago > IT Services > Phones & Internet Connections > DNS Management

UChicago Identity by IP address

This article explains UChicago IP address ranges.

The University of Chicago owns and operates many domains and IP allocations. Most campus hosts are named in the ‘uchicago.edu’ zone. Below are the IP space allocations and brief description of each. Please contact IT Services Networking before making any host or application firewall policies based on this list.


Campus IPv4 Space

May be used for any host or service on campus. Hosts in this space are publicly reachable via the Internet.

128.135.0.0/16 – addresses between 128.135.0.0 and 128.135.255.255 - Public

205.208.0.0/17 – addresses between 205.208.0.0 and 205.208.127.255 - Public

192.170.192.0/19 - addresses between 192.170.192.0 and 192.170.223.255 - Public


Science DMZ IPv4 Space

May be used for any service on the Science DMZ. Hosts in this space are publicly reachable via the Internet and while considered outside the campus border, have full access to all campus resources, including RFC1918 space.

192.170.224.0/19 - addresses between 192.170.224.0 and 192.170.255.255 - Public


Campus RFC1918 IPv4 Space

May be used for any host or service on campus. Hosts in this space are _not_ publicly reachable via the Internet. Some hosts may be configured to reach Internet resources via NAT/PAT.

10.0.0.0/8 – addresses between 10.0.0.0 and 10.255.255.255 - Private

172.16.0.0/12 - addresses between 172.16.0.0 and 172.31.255.255 - Private

192.168.0.0/16 - addresses between 192.168.0.0 and 192.168.255.255 - Private


IPv6 Space

May be used for any host or services on campus. Hosts in this space are publicly reachable via the Internet.

2605:9a00::/32 - An IPv6 Address Plan is currently being developed. - Public


IP Space Usage Notice

All IP Space above is recognized as belonging to the University of Chicago. To avoid conflicting use of IP addresses, IT Services maintains the sole right of allocation and assignment of this IP space.

Any use of public or private IP space, even when such space is unattached or not connected directly to the UChicago network, must be coordinated with IT Services Networking. Please contact IT Services if you are using or would like to use any IP listed above.


UC Hospital IP Space

Below is a listing of public IP space used by the UC Hospital System. We believe this list to be complete but please contact IT Services Networking for confirmation prior to making any host or application firewall policies based on this list. UC Hospitals typically assigns hostnames in the ‘uchospitals.edu’ domain.

165.68.0.0/16 – addresses from 165.68.0.0 through 165.68.255.255 - Public

64.107.48.0/23 – addresses from 64.107.48.0 through 64.107.49.255 - Public




Keywords:networking network university domain servers RFC1918 scidmz sciencedmz arin ipv6 ipv4 ip   Doc ID:19383
Owner:Ryan H.Group:University of Chicago
Created:2011-08-02 18:00 CSTUpdated:2016-02-09 11:34 CST
Sites:University of Chicago, University of Chicago - Sandbox
Feedback:  15   0