Search the entire archive like a dossier index.

MAINWAY Phone Metadata Analysis Program

MAINWAY was not just a database. It was one of the NSA’s central systems for storing, correlating, and chaining phone metadata in order to discover networks, identify links, and surface targets of interest. This entry explains what MAINWAY was, how it fit into STELLARWIND and Section 215, and why it became one of the defining symbols of the phone dragnet era.