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Old Aug 13, 2021 | 7:59 pm
  #48  
kale73
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Originally Posted by jrl767
in the case of DL, I believe most codeshare numbers are in the 3000 series and up (save some AM flights which I think are in the 1000 series)

does DL even operate 2000+ mainline flights on a daily or almost-daily basis?
Mainline? Don’t know. Wikipedia cites “Delta Corporate Stats and Facts” from 2015: “The airline, along with its subsidiaries and regional affiliates, including Delta Connection, operates over 5,400 flights daily”.

9,999 flight numbers should easily cover that. As stated, perhaps the codeshare numbers are the issue.
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