The temporary flight restrictions, which are still in effect, divert planes flying below 3,000 feet within three miles of all collegiate, professional and high school sporting events.
Temporary flight restrictions usually require a formal request and an evaluation by the FAA.
But last weekend there were so many requests that the FAA issued a blanket no-fly zone.
Derek Poarch, director of the UNC Department of Public Safety, said the University did not request a no-fly zone for this past weekend's football game against Florida State University, but the FAA chose to issue one anyway.
Christopher White, a spokesman for the FAA Southern Region, said the restrictions were issued in response to the Sept. 11 terrorist attacks in New York Washington, D.C. and Pennsylvania.
But White said situations would dictate the effectiveness of the flight restrictions in preventing any future terrorist attacks.
White said the restrictions were issued for security reasons, but there is no cause to believe college sporting events are targets.
Commercial flights usually are not affected by the regulations because their flight paths are generally above the 3,000 foot zone.
Exceptions to the restrictions were made for military, medical and police aircraft.