How to Contact an Incarcerated Person (CDCR California)

Official CDCR page explaining how to reach someone in a California state prison by mail, email and phone. Covers correct envelope addressing (full name plus CDC number, institution, PO box housing), locating a person through CIRIS or the ID Unit, Viapath electronic messaging costs, and telephone rules including the policy making audio calls free since 1 January 2023 with a 15-minute limit.