Many schools have one or more listings of important school numbers on their websites. Holy Apostles College and Seminary, the University of Central Missouri, Xavier High School, the University of Notre Dame and Metropolitan Community College in Kansas City are a few examples of schools that provide online phone directories.
Many schools with phone directories provide phone numbers for the most important offices and facilities on campus, such as the president/rector's office, registrar, library, cafeteria and financial aid office. They may also have directories of at least some of their faculty members. Some of these directories, such as that of the University of Notre Dame, have search engines.