1-27 published by Dell as part of the Four Color series.
28-84 published by Dell
85-204 published by Gold Key
205-218 published by Whitman
219-256 published by Gladstone
257-295 published by Gemstone as Mickey Mouse & Friends
296-309 by Boom! Studios, continuing title change
310-onward IDW as Mickey Mouse. IDW re-numbered the title but kept the original numbering too.