[jwjtewun] avoiding exit 666

I-5 exit 667A, Anderson, CA

US-101 exit 667A, Englewood, Redcrest, CA

the above two seem to be deliberately avoiding having an exit 666 by substituting 667A, perhaps to deter sign theft.

I-10 has exit 661 then exit 668, Flatonia, TX.

exit numbers as high as 666 are only possible on long highways in large states.

highway 401 in Ontario, Canada has exit 661 (Lansdowne) then 675 (Mallorytown).