Airline Reservation scam several numbers

Scams
1

Imposters of Delta and United Airlines

18442348808
18446531498
18777157222

18778898381
18788470037

2

[[3,15,37,57],[3,15,37,57,62]]

3

Removed the number 18883020054 last digit minus one for being a legit company, https://www.cheapbizclass.com/