Activities Sports & Athletics What the Uniform Numbers in Pro Football Mean Share PINTEREST Email Print Runningback Jim Brown #32 of the Cleveland Browns during the NFL Championship Game on January 2, 1966. Tony Tomsic/Getty Images Sports & Athletics Football Basics Playing & Coaching Plays & Formations College Football Baseball Bicycling Billiards Bodybuilding Bowling Boxing Car Racing Cheerleading Extreme Sports Golf Gymnastics Ice Hockey Martial Arts Professional Wrestling Skateboarding Skating Paintball Soccer Swimming & Diving Table Tennis Tennis Track & Field Volleyball Other Activities Learn More By James Alder James Alder James Alder is an expert on the game of American football, blogs for The New York Times, and appears on radio shows. Learn about our Editorial Process Updated on 08/28/18 Every NFL football player's uniform bears a number. It's unique for his particular team—no one else can use or wear it. This makes it easier for fans, coaches, announcers, and officials to differentiate between the players on the field. A jersey-numbering system was initially launched by the National Football League on April 5, 1973. The system assigned certain ranges of numbers to each player position from which a player could choose. Here are the original numbers from 1973. They've changed a little, but not much. 1 - 19: Quarterbacks, punters, and kickers 20 - 49: Running backs and defensive backs 50 - 59: Centers (or 60-79 if this range is taken) 60 - 79: Defensive linemen and offensive linemen 80 - 89: Receivers and tight ends (or 40-49 if this range is taken) 90 - 99: Defensive linemen and linebackers Changes Over the Years The original system stood until 2004, although not without objections from some players. Then the NFL changed it up to allow wide receivers and tight ends a bit more versatility—they, too, could claim numbers between 10 and 19 beginning in 2004. The first three receivers taken in the draft that year grabbed number 11: Larry Fitzgerald, Roy Williams, and Reggie Williams. Randy Moss promptly changed his number to 18, and Plaxico Burress switched to number 17. Then, in 2010, a rule was passed to allow defensive linemen to wear numbers 50 through 59. The NFL Competition Committee made another change in 2015, allowing linebackers to use numbers 40 through 49 for the first time. Number 32 A lot of great players have worn number 32 over the years, including Jim Brown, O.J. Simpson, Franco Harris, and Marcus Allen. Brown is considered to be one of the greatest, if not the greatest, running back to ever play in the NFL. Simpson achieved notoriety after his career ended, but people should not forget that he was also one of the greatest running backs in the history of the league. Harris helped the Pittsburgh Steelers win four Super Bowl championships, and he earned Most Valuable honors in one of them. Allen also helped his team, the Oakland Raiders, get to the Super Bowl, and he earned Super Bowl MVP honors. He was a six-time Pro Bowler. Number 12 This is the most famous and revered number in NFL history for quarterbacks. Several Hall of Famers have worn it through the generations, including Joe Namath, Terry Bradshaw, and Roger Staubach. Namath, nicknamed "Broadway Joe" for his nightlife escapades off the field, is famous for his cocky prediction that his New York Jets would beat the Baltimore Colts in Super Bowl III. He backed up his boast by leading New York to a 16-7 win. Bradshaw was the Pittsburgh Steelers' quarterback in those great years of the 1970s, leading them to four Super Bowl titles in six years. Staubach is one of the Dallas Cowboys' all-time greats. He played on five Super Bowl teams and was the starting quarterback in four of them. He also earned Super Bowl MVP honors, becoming the first NFL player ever to win both a Super Bowl MVP award and the Heisman Trophy. Other past greats to wear the number 12 include Ken Stabler, Jim Kelly, and John Brodie. Stabler, a lefty, was one of the greatest Oakland Raiders quarterbacks ever. Kelly led the Buffalo Bills to four Super Bowls, although they lost them all, and Brodie threw for over 31,000 yards in his illustrious career.