National Cryptologic Museum | Cryptologic History

An official website of the United States government

Here's how you know

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

NOTICE: The National Cryptologic Museum will be CLOSING EARLY at 2:00 PM on Friday, October 9th.
We will re-open to the public on Tuesday, October 13th at 10:00 AM.

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

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.

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,...