Amtrak
1-800-USA-RAIL (1-800-872-7245)
Street Level
Information on Amtrak schedules and fares
http://amtrak.com

Customer Service
202-908-3260

Amtrak Lost and Found
202-908-3260

Station Lost & Found - 202-289-8355 (items lost in the Station other than on Amtrak Trains)

Amtrak Baggage-Storage Room- Tiburon - Lockers
202-898-1592
Lower Level - Food Court
Storage of baggage with a concierge. Fees based on size of luggage

Metro
http://www.metroopensdoors.com/

MARC Trains
(800) 325-7245
Street Level
Maryland Rail Commuter Service - Commuter rail servicing Maryland, Washington, DC and West Virginia
http://mtamaryland.com/services/marc/

Virginia Railway Express (VRE) 
1-800-RIDE-VRE
Street Level
Virginia Railway Express - Commuter rail servicing Washington DC and Northern Virginia.
http://vre.org