Mail codes are used to send interdepartmental mail on ASU’s campuses. They are also used to address postal mail. To find a mail code:

1. Use the Directory to look up a person or a department.
2. Mail Services on the Tempe campus maintains a list of mail codes for the Tempe campus.
3. Visit the department’s web page to find contact information (see the A-Z Index for an alphabetical list of departments).