Activate Your Alumni Network

Connect with the Caltech community on Facebook, LinkedIn and Flickr, or follow the Alumni Association on Twitter. Learn more >>

Search for fellow alumni, update your address or post a class note. Log in with your 10 digit alumni ID number and password in the login circle at lower left.

The ten-digit ID number (user ID) is printed on your Membership card if you are an Association member. You can also find it on the address label of Caltech mailings. Membership in the Alumni Association is not required for login. Need help?

You must log in to access the Alumni Network (directory), Class Notes, and Job Postings.

If you are not a member of the Alumni Association, learn about membership benefits and sign up.