Passport Application Services - Marshall 8361 W Main St Marshall, VA 20115 Phone : (540) 364-9491 Business Category Passport Application Services Toll-Free           (800) ASK-USPS Fax           (540) 364-4354 Post Office - Marshall 8361 W Main St Marshall, VA 20115 Phone : (540) 364-9491 Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (540) 364-4354