That's why I asked because where I shoot F-Class the guy writing score often calls out both the score and the clock code for each shot as well as sometimes notifying the shooter after shot 19 and again at shot 20, especially if the shooter requests it.
Since each shot is marked in F-Class, this information is in plain sight for all to see and mentioning it doesn't involve any kind of judgement call. In other words, we don't consider this to be a violation of the no coaching part of the rule book. However, I shoot in a part of the United States where folks are generally low key and put a good deal of emphasis on being friendly and having fun while at the same time doing our best to win fare and square.
Naturally, some folks might have a different view in some other area of the United States and if mentioning the clock code were frowned on at another range, then the "when in Rome" rule would obviously apply.
Of course, saying something about how much to adjust for a sudden change in the wind, would (I think most would agree) violate the prohibition on coaching.