The Dallas Cowboys are a professional American football team located in the Dallas–Fort Worth metroplex. The Cowboys compete in the National Football League (NFL) as a member club of the league's National Football Conference (NFC) East division. They are headquartered in Valley Ranch in Irving, Texas. The headquarters will move to Frisco, Texas in 2016. The team plays its home games at AT&T Stadium in Arlington, Texas, which opened for the 2009 season. The stadium took its current name prior to the 2013 season. The Cowboys joined the NFL as an expansion team in 1960. The team's national following might best be represented by its NFL record of consecutive sell-outs. The Cowboys' streak of 190 consecutive sold-out regular and post-season games (home and away) began in 2002. The franchise shares the record for most Super Bowl appearances (8) with the Pittsburgh Steelers, New England Patriots, and the Denver Broncos, corresponding to most NFC championships (8). The Cowboys won five (5) of those Super Bowl appearances, tying them with their NFC rivals, the San Francisco 49ers, both are second to Pittsburgh's record six (6) Super Bowl championships. The Cowboys are the only NFL team to record 20 straight winning seasons (1966–85), in which they only missed the playoffs twice (1974 and 1984), an NFL record that remains unchallenged.
In 2015, the Dallas Cowboys became the first sports team to be valued at $4 billion, making it the most valuable sports team in the world, according to Forbes. The Cowboys also generated $620 million in revenue in 2014, a record for a U.S. sports team.