A design drawing for the U.S. Mail's Pac Fax mailbox, as seen in Courthouse Square. Note that the box here advertises a "30 Second Service" as opposed to the ".05 Second Service" seen on-screen.

The U.S. Mail's Pac Fax mailbox on a street corner in Courthouse Square. Marty McFly can be seen behind the mailbox's built-in fax machine.

Pac Fax was a fax service run by the U.S. Mail in 2015.


Public mailboxes had fax machines built in so that people could send faxes while on the move. One such mailbox was present in Courthouse Square, Hill Valley and advertised a “.05 Second Service”.

Behind the scenes

  • Back to the Predictions spells the name of this fax service as Pac-Fax (with a hyphen, as here).[1]


  • As the movie makers had obviously not foreseen the rise of the internet, and with the rise of email, it appears unlikely the U.S. Mail will set up such a fax service as that seen in Back to the Future Part II.


See also


  1. Pac-Fax - Back to the Predictions (see 'External links' below)

External links