Planet Coaster Goldmine Tower Walkthrough, The usual waiting time to get your passport is 4 to 6 weeks when submitting from the Western Passport Center. You cannot walk-in. Street Postallocations.com Show details . 44301 mercure circle sterling, va phone number PO Box 1178 Sterling, VA 20166-1178. Get Directions. To make an appointment, you must call 1-877-487-2778 or 1-888-874-7793 (TDD/TTY).