Whois & Analysis for cbssports.com

The National Basketball Association (NBA) is the major men's professional basketball league in North America, and is widely considered to be the premier men's professional basketball league in the world.

It has 30 teams (29 in the United States and 1 in Canada), and is an active member of USA Basketball (USAB), which is recognized by FIBA (also known as the International Basketball Federation) as the national governing body for basketball in the United States.

The NBA is one of the four major professional sports leagues in the United States and Canada.

NBA players are the world's best paid athletes by average annual salary per player.

CBS Sports is the sports division of the American television network CBS.

Its headquarters are in the CBS Building on West 52nd Street in midtown Manhattan, New York City, with programs produced out of Studio 43 at the CBS Broadcast Center on West 57th Street.

The history of basketball is traced back to a YMCA International Training School, known today as Springfield College, located in Springfield, Massachusetts.

The sport was created by a physical education teacher named James Naismith, who in the winter of 1891 was given the task of creating a game that would keep track athletes in shape and that would prevent them from getting hurt a lot.

The date of the first formal basketball game played at the Springfield YMCA Training School under Naismith's rules is generally given as December 21, 1891.

Basketball began to spread to college campuses by 1893.

The National Hockey League (NHL) is a professional ice hockey league currently composed of 30 teams – 23 in the United States and 7 in Canada – with a 31st team in Las Vegas scheduled to begin play in the 2017–18 season.

Headquartered in New York City, the NHL is considered to be the premier professional ice hockey league in the world, and one of the major professional sports leagues in the United States and Canada.

The Stanley Cup, the oldest professional sports trophy in North America, is awarded annually to the league playoff champion at the end of each season.

The National Football League (NFL) is a professional American football league consisting of 32 teams, divided equally between the National Football Conference (NFC) and the American Football Conference (AFC).

The NFL is one of the four major professional sports leagues in North America, and the highest professional level of American football in the world.

The NFL's 17-week regular season runs from the week after Labor Day to the week after Christmas, with each team playing 16 games and having one bye week.

Following the conclusion of the regular season, six teams from each conference (four division winners and two wild card teams) advance to the playoffs, a single-elimination tournament culminating in the Super Bowl, which is usually held in the first Sunday in February, and is played between the champions of the NFC and AFC.