They still have the equipment in place but whether the channel will actually be available or not on a flight is upto the Captain, and often it is not available.
But these days with availability of in flight WiFi via satellite I find it more entertaining to watch the flights progress on Flighradar24 or some such ADS-B driven sites. It gives a much better view of the situation around the plane that trying to decipher it from the ATC chatter, specially since a lot of the really interesting stuff now gets transmitted in digital messages via ARINC rather than via voice on ATC.