Are any numbers banned in football?

Are Numbers Banned in Football? Not Exactly—But There Are Rules

Football fans might wonder if certain numbers are off-limits on the field. The short answer: no single number is outright banned, but there are clear rules about who can wear what. Across professional and college football, each player must wear a unique number between 0 and 99. This ensures referees, fans, and broadcasters can easily identify players and avoid confusion during play.

One notable shift happened recently with the number 0. Long absent from American football, it was traditionally prohibited. But times have changed. In 2020, college football opened the door, allowing players to don the zero for the first time. Then, in a move that made waves, the National Football League followed suit—starting with the 2023 season, NFL players can now wear 0 as well. It’s a rare sight, but not impossible: Jason Sanders of the Miami Dolphins became one of the first in the modern era to wear it.

While 0 is now fair game, other restrictions still shape number choices. The NFL has specific numbering rules by position: quarterbacks, for example, are generally limited to numbers 1–19, while linebackers must wear 40–59 or 90–99. These guidelines help officials quickly assess whether a team has too many eligible receivers on the field and maintain consistency across broadcasts and rule enforcement.

So, while no number is truly banned anymore—not even 0—the system is designed to bring order to the gridiron. Whether it’s tradition, identity, or rule compliance, the number on a player’s back is more than just style; it’s part of the game’s structure.