Per NSF:
https://www.nasaspaceflight.com/2016/05/latest-recovered-falcon-9-stage-39a-hif/
https://www.nasaspaceflight.com/2016/05/latest-recovered-falcon-9-stage-39a-hif/
Meanwhile, yet another first stage may join the recovered cores, via the upcoming Thaicom-8 mission that is set to launch from SLC-40 at Cape Canaveral.
This mission is currently targeting a launch on May 26, with a launch window of 17:40 through to 19:19 Eastern. The first stage is already inside the SLC-40 HIF, with the Static Fire test currently scheduled for May 22.
This stage will also be targetted a landing on the ASDS.