Based in Ontario, California, and affiliated with the National Hockey League's Los Angeles Kings, the team plays its home games at the Toyota Arena.

The team retained the Reign nickname from its ECHL predecessor (which moved to Manchester and took on the Monarchs moniker, in essentially a "franchise swap").

In the conference finals, the Reign were swept by the eventual Calder Cup champion Lake Erie Monsters in four games.

During the next season in 2016–17, due to goaltender injuries and call-ups for their parent club, the Los Angeles Kings, the Reign ended up using a Canadian father-son duo Dusty and Jonah Imoo during a game in October 2016.

[5] Approaching the delayed 2020–21 season, the Reign announced they would temporarily relocate and play out of the Kings' practice rink, Toyota Sports Center, in El Segundo due to pandemic-related restrictions.