Washington Metropolitan Area Transit Authority Washington Metropolitan Area Transit Authority Search | Advanced Search | New Members | Coupons and Discounts | All Categories   Advertising & Media >> Transportation Washington Metropolitan Area Transit Authority 600 Fifth Street, NW, Rm #7D-01Washington, DC 20001 (202) 962-1257 | fax: (202) 962-1409 Visit Site Connect With Us Send a message to: Washington Metropolitan Area Transit Authority Your Name: Your Email: Subject: Message: (Date: 7/2/2022)