Contact Information

Webmaster:

If you have questions or comments pertaining to the information provided on this Web site or are experiencing technical difficulties, please contact: webmaster_nss@nga.mil.

NGA Customer Help Desk:

The NGA Customer Help Desk is available 24 hours a day, seven days a week, to assist customers with general questions about NGA products and services.

Toll-free: 800-455-0899
Telephone: 314-263-4864
Telefax: 314-263-4875
DSN: 693-4864
DSN Telefax: 693-4875
E-mail: chdesk@nga.mil.

Points of Contact:

During normal office hours (0600 to 1500 ET), users can contact the Maritime Safety Office at any of the phone numbers listed below. For after-hours assistance, users should contact the Worldwide Navigation Warning Service watch desk (toll free: 800-362-6289).

Maritime Safety Office Mailing Address:

Maritime Safety Office
MS N64 SH
National Geospatial-Intelligence Agency
7500 GEOINT Drive
Springfield, VA 22150