Coincidence or intent?

So I was watching "The Others" this afternoon.  You know.  The unfortunately short-lived series John Billingsley was on before Enterprise.  Anyway, I rewatched the ep Souls of Board and realized that the flight they're on is flight 602.  Now anyone who watched ENT knows that the club the Starfleet people go to is the 602 Club.  I wonder if it was coincidence, or if it was a small nod to John's previous series.  I like to think it was the latter.