I went to all the exchanges that I could find, that also traded DogeCoin, and put in a request on their Twitter page for APEXcoin, except for one case where I couldn't find the Twitter account so I sent the request to the email listed on the site. I listed these exchanges and their Twitter/Email accounts below in case you'd like to send requests also. If you want me to add some exchanges and their Twitter/Email accounts to this list then put them in a reply to this post and I'll update the list.