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.

New IP Block Added for MWireless

Due to the continued growth of WiFi across the UM-Ann Arbor campus, ITS is adding a new block of IP address space (35.3.0.0/16*) to the ​MWireless network. The addition of new IP address space will help ensure the availability of MWireless across campus as use of WiFi continues to grow. The targeted timeline for introducing this new address space is spring/early summer.

Important Information on IP Filtering

For those who may be filtering access to resources by IP addresses used by MWireless, please know that you will need to ​include the 35.3.0.0/16 network by the end of March to help ensure a seamless introduction.

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, Unauthenticated Wireless 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