National Cryptologic Museum | Cryptologic History

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NOTICE: VISITOR ADVISORY: Modified hours in effect on select dates in November and December in addition to standard holiday closures
Early closures (2:00 PM) on Nov 10, Nov 25, and Dec 24; full closure on Nov 27; and a year-end closure from Dec 28 through Jan 1
We will re-open on Tuesday Jan 5, 2027 and look forward to seeing you

Open Tuesday - Friday (and first Sat of the month)*

10 a.m. to 4 p.m.

FREE Admission

* Please Note - NCM IS CLOSED ON ALL FEDERAL HOLIDAYS - Museum hours are subject to change, please check our web site and social pages for the latest information prior to your visit

About the Museum

NCM Museum

Tours & Education Programs

Tours & Education Programs

Museum Exhibits

Museum Collection Database

Museum Collection Database

Former President Obama’s mobile devices

News & Highlights

STEM Fest 2026: Signaling the Future

Join the National Cryptologic Museum for the 12th Annual STEM Fest! Dive into a world of discovery where science, technology, engineering,...

National Cryptologic Museum to Unveil Historic Exhibit Highl...

FORT MEADE, Md. – The National Cryptologic Museum announces the historic unveiling of never-before-seen artifacts that shed light on...

Decoding a Nation: 250 Years of American Secrets

Now on display, the National Cryptologic Museum is highlighting the unlocking of secrets for 250 Years.