1. FedEx Ship Center 7331 Calhoun Pl, Derwood, MD 20855 Coordinate: 39.10874,-77.14967 Phone: (800) 463-3339
2. United States Postal Service 17533 Redland Rd, Derwood, MD 20855 Coordinate: 39.14398,-77.14423 Phone: (800) 275-8777