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 museum will close on Christmas Day 12/25/25, Friday 12/26/25, Saturday 12/27/25, New Years Day 1/1/26, Friday 1/2/26, and Saturday 1/3/26. Outside of those holidays, the Museum will follow normal operating hours of Tuesdays - Saturdays, from 10 a.m. - 4 p.m.

Open Tuesday - Saturday: 10 a.m. to 4 p.m.
FREE Admission

About the Museum

NCM Museum

Tours & Education Programs

Tours & Education Programs

Exhibits

Museum Exhibits

Museum Collection Database

Museum Collection Database

Contact Us

Former President Obama’s mobile devices

News & Highlights

Toying with Secrets at the National Cryptologic Museum

From Baby Boomers to Generation Z, the action-packed world of comics has stitched generations together. From huddling around the radio to...

STEM Fest: Engineering Ideas Into Reality

Join the National Cryptologic Museum for the 10th Annual STEM Fest! Explore a world of discovery where science, technology, engineering and...

National Cryptologic Museum Hosts: A Conversation with Merry...

The National Cryptologic Museum (NCM) welcomes Dr. Merryl Goldberg, Professor in the School of Arts at California State University San...

National Cryptologic Museum Special Events

The NCM hosts various virtual and in-person special events to educate the public on the role of cryptology in shaping America’s history.

Search & Register