/usr/share/doc/miscfiles/na.postalcodes.gz is in miscfiles 1.5+dfsg-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/miscfiles/../../misc/na.postalcodes.gz
/usr/share/doc/miscfiles/../../misc/na.postalcodes.gz