Then there is KMOT. "Magic City" when the tower is open. "Minot Area Traffic" when the tower is closed (Do not forget to make mandatory postition reports on CTAF). Never "Minot International", regardless what the sectional says.
For those not from the area, KMOT's tower is called MAGIC CITY TOWER because MINOT TOWER is located at the nearby KMIB Minot Air Force Base. And the Chart Supplement provides that name. It pays to actually read the Chart Supplement before you fly to any airport for the first time.
Is there an actual regulation that makes CTAF calls mandatory in Class D-reverted-to-E airspace when the tower is closed? I have always made them and I know that a lot of people are passionate about their importance in the world, but are they actually mandatory, in a legally enforceable sense?
For choosing a name to call a place on CTAF, I usually look at the Chart Supplement, which sometimes gives a different name than the sectional. And I usually just default to the name of the town unless it's ambiguous. If anyone corrects me, I'll just change to "NORDO traffic, I'm coming in hot."
I never say "area" because I don't think it adds useful information for anyone. I have never heard "Podunk Traffic" and thought "well, I'm not actually inside the fence at Podunk Municipal, I'm just in the area, so I can disregard that one." I suspect nobody else has done that, either.
Similarly, there's rarely a need to say International, Municipal, or the like. At KGGW Glasgow International, you can say "Glasgow Traffic" and nobody think will think you're talking about the private Glasgow Industrial airport north of town (former Air Force Base).
That said, I give props (get it?) to the Cape Air guys who sometimes compete for the silliest name for KGDV Dawson Community on CTAF. It's like the Aristocrats joke, trying to say as many different things without repeating one. I think one of them called it "Glendive Dawson County Community Intercontinental Municipal International Field Airport Traffic" before he had to unkey the mic to laugh. And he didn't even say "any traffic in the area please advise" afterward. A true professional.