Network Addresses

UMnet Administration coordinates the networking infrastructure and network numbers. A Standard Practice Guide policy for Internet Addressing: IP Address Standards provides information about addressing at the university.

Notes:
  • The addresses listed below are external IP addresses which are reachable from inside and outside the university.
  • For information on private IP addressing (e.g., addresses which are reachable only inside the university), refer to the Private IP Network Numbers page.
  • UMHS network IP addresses of 141.214.x.y are administered by the Health Information & Technology Services group.
IPv4 Range Network Contact
35.0.0.0/16 Ann Arbor (Guest, Unauthenticated) Users should not be considered university faculty, staff, or students. 35.0.0.0/16 is divided as follows:
  • 35.0.0.0/18 - MGuest wireless users
  • 35.0.64.0/18 - Eduroam wireless and UMnet guest users
  • 35.0.128.0/18 - UMnet guest users
  • 35.0.192.0/18 - UMHS guest users
UMnet
35.1.0.0/16
35.2.0.0/16
35.3.0.0/16
Ann Arbor (UMnet Authenticated Wireless)
Users are considered university faculty, staff, or students.
UMnet
65.117.69.14/32 LSA Earth and Environmental Sciences - Camp Davis (Jackson, WY) Camp Davis Staff
67.194.0.0/16 Ann Arbor (UMnet and Residence Halls) UMnet
141.211.0.0/16 Ann Arbor (UMnet) UMnet
141.212.0.0/16
141.213.0.0/17
Ann Arbor (College of Engineering) CAEN
141.213.128.0/17 Ann Arbor (UMnet) UMnet
141.214.0.0/16 Ann Arbor (UMHS) HITS
141.215.0.0/16 Dearborn Dearborn
141.216.0.0/16 Flint Flint
192.12.80.0/24 Backbone Interconnect (UMBIN - interconnects UMnet, UMHS, Dearborn, and Merit) UMnet
192.231.253.0/24 Ann Arbor (UMnet NOC) UMnet
198.108.8.0/21 Ann Arbor (IP Telephony and Network Infrastructure) UMnet
198.108.200.0/22
198.110.84.0/24
Biological Station (Pellston, MI) Biological Station Staff
198.111.224.0/22 Ann Arbor (ITS Infrastructure Interoperability Lab) UMnet
198.111.181.0/25 Ann Arbor (UMHS public-facing servers) HITS
207.75.144.0/20 Ann Arbor (UMnet WAN-connected off-campus networks) UMnet
IPv6 Range Network

Contact

2607:F018::/32 Ann Arbor (allocated as shown below) UMnet
2607:F018::/33 UMnet UMnet
2607:F018:C000::/35 UMHS HITS
2607:F018:E000::/35 Special Networks UMnet