Airline ICAO Code and Callsign for the airlines added by the Nyerges Design add on. The provided information is based on the liveries added by the addon.
Several of the Airlines are no longer in business of have merged with other airlines, there were a few I could not find but left the space in case we come across them in game.

If you prefer to use a tablet or open another screen for multi screen pc you can get most of the call signs from https://airlinecodes.info website. Others can be found on wikipedia. There are also a couple apps for phones and tablets, World Airlines, and Callsign are 2 you can get on iPhone.

I like to use a second sheet of paper to jot down the call signs for the current scenario I am playing so the list is more manageable. I refer to a printout of the spreadsheet for any I haven't memorized yet.


I hope this helps.


Airline ICAO and Call Sign Document [docs.google.com]

After going through each aircraft folder and searching for the call sign of each airline I came across a spreadsheet in the game files that had the same information. (dang wasted day lol)

You can find the call sign of every added airline in your game folder. I use my E drive so this is where it is located on my PC. the same file will be in any of the Airports files.

E:\SteamLibrary\steamapps\common\Tower! Simulator 3\Airports\TIST\databases\NyergesDesign\airlines.csv

I suggest you copy the airlines.csv file into a different folder on your drive. Perhaps in your Documents folder. You than then alphabetize the list for printing.