Yep, shore did . . . . . . . YOU . . . . and heavy on the YOU, are more apt to encounter a BC 846-A on YOUR manufacturing side side of the big waters.
While I, me,we,us and Mr 'tater man . . . . are more likely to encounter a MMBT3904 being on OUR boards.
Didn't happen to see the "Code Book " referencing . . . . residing on my hard drives since the very early 2000's . . . . since I wuz bizzy, a poking up my entry, and then let er' rip . . . . just after doing so.