It is a league that has many different branches, theres a junior league, western hockey league, and so on, but the main league is the national hockey league which is composed of 30 teams.
The American Hockey League. (AHL)
The Quebec Junior AAA Hockey League is a Hockey Quebec Junior "AAA" ice hockey league and is a member of Hockey Canada and Canadian Junior Hockey League. A person must be a professional hockey player to join the Quebec Junior AAA Hockey League.
ECHL (East Coast Hockey League)
British Hockey League was created in 1982.
British Hockey League ended in 1996.
Armenian Hockey League was created in 2000.
Central Hockey League was created in 1992.
Romanian Hockey League was created in 1924.
Malaysia Hockey League was created in 1987.
Austrian Hockey League was created in 1923.
Champions Hockey League was created in 2008.
United Hockey League was created in 1991.