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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.
220.127.116.11/16 – addresses between 18.104.22.168 and 22.214.171.124 - Public
126.96.36.199/17 – addresses between 188.8.131.52 and 184.108.40.206 - Public
220.127.116.11/19 - addresses between 18.104.22.168 and 22.214.171.124 - 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.
126.96.36.199/19 - addresses between 188.8.131.52 and 184.108.40.206 - 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
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.
220.127.116.11/16 – addresses from 18.104.22.168 through 22.214.171.124 - Public
126.96.36.199/23 – addresses from 188.8.131.52 through 184.108.40.206 - Public