we know we are above the Anti Magic Field at the moment.
But Anti Magic Field Zone, presuming a standard spell area
Area 10-ft.-radius emanation, centered on creature

without knowing where it starts/ends, center, actual size, would DD effect actually work, due to range?
passing through debatable on if anything occurs

Feather fall the moment you enter the field gets turned off and the rest is fall damage, this was discussed when I mentioned it earlier

Teleport could work if we can see the spot where were going otherwise that is a huge risk best left un-taken