Can't think of any in Florida, but there is an sign on I-95 south that says Miami 305 (miles)...photo on laptop, sorry.
305 wouldn't be in Miami-Made or Monroe Counties.
954 nor 754 wouldn't be in Broward County, although it would be close by, on the grid.
SR 786 is in Palm Beach County, but outside its area code.
863 doesn't exist (I think), but it could sort of fit in its area code if it did.
813, 850, 727, 904, wouldn't be that far north.
352 and 321 are mysteries to me, I'm not sure they exist, but I could be wrong...they would be out of the grid, anyhow.