Question Regarding Submission Deliveries to PSA

Has anyone noticed that when a submission package to PSA is being delivered, sometimes the zip code reads the 92658 you address the package to and other times it reads zip code 92660? I'm just wondering what the reason was behind that. Does anyone know why?
Collecting 1970s Topps baseball wax, rack and cello packs, as well as PCGS graded Half Cents, Large Cents, Two Cent pieces and Three Cent Silver pieces.
0
Comments
4 goes into 92660 evenly and does not go evenly into 92658.
Could THAT possibly be the reason?
How are ya Tim?
Doug
Liquidating my collection for the 3rd and final time. Time for others to enjoy what I have enjoyed over the last several decades. Money could be put to better use.
Collecting 1970s Topps baseball wax, rack and cello packs, as well as PCGS graded Half Cents, Large Cents, Two Cent pieces and Three Cent Silver pieces.