HomeAbout UsCryptologic HeritageNational Cryptologic MuseumMuseum Hours

National Cryptologic Museum

Hours of Operation

Monday – Friday
9:00 a.m. – 4:00 p.m.

Saturdays (1st and 3rd Saturdays of the month)
10:00 a.m. – 2:00 p.m.

Closed Sundays and Federal Holidays

Phone numbers
Office:  301-688-5849
Gift Shop:  301-688-6857
Library:  301-688-2145
Fax:  301-688-5847
Email the Museum

Group tours are scheduled in advance. A minimum of six people is required to schedule a tour.