So far this is all I can find from the company and it says 3 lists:

(61)
Pilot seniority integration here is unique in that the pilots of the two merging
carriers are faced with integrating three separate seniority lists as a result
of a five-year dispute among the pilots of one of the two merging carriers.
The West Pilots have been deemed a single unified group, as demonstrated
by this Court’s decision to again certify the class of approximately 1,600 West Pilots in this litigation, all of whom “are on the America West seniority list cu
rrently incorporated intothe West Pilot’s collective
bargaining agreement.” (ECF. No. 194, at 1:16-3:19.)