FlyerTalk Forums - View Single Post - Sequence Numbers: What are they, how are they used & other questions?
Old Jun 20, 2013 | 1:50 am
  #27  
okrogius
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Originally Posted by pinerd
If there's another flight with that number, it is in the same sequence series.
That's one reason. Plus if you get unchecked in, that sequence number isn't recycled for someone else.
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