: The subsequent five characters (or four in legacy 5-digit systems) uniquely identify the specific command.
The first character of a Navy UIC is always 'N', indicating it belongs to the US Navy. navy uic code list
Most active Navy units start with the letter N . : The subsequent five characters (or four in
: Assigned to the vast majority of active-duty Navy shore commands and floating units. and defense contractors without CAC access
For researchers, historians, and defense contractors without CAC access, partial or historical UIC lists are sometimes available through Freedom of Information Act (FOIA) reading rooms or unclassified military archives. However, active operational units and sensitive commands may be redacted from publicly accessible lists to maintain operational security (OPSEC). UICs vs. RUCs: Understanding the Difference