This article explains UChicago IP address ranges.
Devices on the University of Chicago network are assigned hostnames in the “uchicago.edu” domain and IP addresses in any of the following ranges:
18.104.22.168/16 – addresses between 22.214.171.124 and 126.96.36.199
188.8.131.52/17 – addresses between 184.108.40.206 and 220.127.116.11
10.0.0.0/8 – addresses between 10.0.0.0 and 10.255.255.255
Any address in these ranges should be recognized as belonging to the University of Chicago community and granted access or privileges accordingly. Other private IP address space as specified by RFC1918 is not carried by the campus network except by arrangement with Data Networking. To avoid conflicting use of this space, we request you inform us if you make use of such IP space. Data Networking can be reached through email to email@example.com.
As a point of information, the University of Chicago Hospitals and Clinics assign hostnames in the “uchospitals.edu” domain and IP addresses of
18.104.22.168/16 – addresses from 22.214.171.124 through 126.96.36.199
188.8.131.52/23 – addresses from 184.108.40.206 through 220.127.116.11