If you are seeking general information for a particular UD department or program, you may want to start here. Fac Mgmt-Vehicle Maint. The area code for the University of Delaware is 302. The prefix for University phone numbers is 831, unless otherwise noted. The seven-digit numbers listed for UD students refer to private voice mailboxes.
Every student is assigned a voice mailbox.
More Dialing Information Find out how to dial various numbers from UD offices or dorm rooms, as well as TDD locations, telephone features, and how to request telephone or directory-related services.