Car Numbers in the
Challenge Series
On this page you can view all the current car numbers
being run in the Challenge Series and request a number for yourself.
Note: These are only numbers for spec legal cars
running in the series or being built to run in the series. NASA has
final say on numbers. You may be asked to use a different number when
registering for a NASA event.
To see if your number choice is available, search
the list below. If you find that your number choice is taken, check what
Region it is assigned in. It is acceptable to have duplicate numbers in
different Regions. However, if you run in another region or at NASA
Nationals, you may have to add a letter to your number, such as "E" or
"W" (east/west).
Request a Number
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