You can often check your registration status for a college or university on the school's website. For example, Cornell University, Oakland University and the University of Denver offer means to check your registration online, usually on their websites' Office of the Registrar section.
Cornell students check their registration status through the Student Essentials online portal. After accessing the portal, find the Registration Status feature on the top of the page. A green check mark indicates that you are registered. Oakland University has a similar process for its website.
The University of Denver details school policy on account holds and time assignments that can affect registration.