The Extreme and Ultimate service tier offerings were created in 2009 at 30 Mbit/s and 50 Mbit/s download, respectively, and gradually became available in all markets over several years as Time Warner Cable rolled out DOCSIS 3.0 upgrades nationwide [REF].
After the TWC acquisition by Charter in June 2016, TWC Maxx upgrades have been put on hold, indefinitely [REF].