31 teams play in the National Hockey League. 24 of the teams are in the United States and 7 in Canada. The league started with 6 teams.
The league is divided into the Eastern and western conference.
Eastern Conference: the eastern conference is divided into The Metropolitan division and the Atlantic division.
Metropolitan division
Carolina Hurricanes, Columbus Blue jackets, New Jersey Devils, New York Islanders, New York Rangers, Pittsburgh Penguins and Washington Capital.
Atlantic division
Boston Bruins, Buffalo Sabres, Detroit Red Wings, Florida Panthers, Montreal Canadiens, Ottawa Senators, Tampa Bay Lightning and Toronto Maple Leafs.
Western Conference is divided into central and pacific division
Central division
Chicago Blackhawks, Colorado Avalanche, Dallas Stars, Minnesota Wild, Nashville Predators, St. Louis Blues and Winnipeg Jets.
Pacific division
Anaheim Ducks, Arizona Coyotes, Calgary Flames, Edmonton Oilers, Los Angeles Kings, San Jose Sharks, Vancouver Canucks and Vegas Golden Knights.