DNS and IP addressing

The University Hostmaster provides the following services:

• the IP Register database, which manages the contents of the DNS for most of cam.ac.uk and the University's IP address space

• DNS servers, including resolvers for use by devices on the University Data Network (UDN), and authoritative servers on site and off site that host University domain names

• DHCP servers that are integrated with the IP Register database.

Our DNS website also provides news about DNS in Cambridge, information about how we block malicious domain names, configuration advice for stealth secondary servers on the UDN and links to some of our open source software.
 

Domain names

UIS provides advice and technical support for registering DNS domain names.
The process for registering a domain name depends on the name.
 

IP address ranges 

You can find the full list of the IPv4 and IPv6 address ranges on the IT staff support SharePoint site. Access to this site is managed through Entra groups for institutional IT staff. If you are an IT officer, please contact your local IT lead. They can add you to the group. Alternatively, you can contact the Service Desk.