MAN Dispatcher here is a full list of airlines and their agents at NCL, hope its of some use and bear in mind airlines do visit on an adhoc basis alot at NCL.
Servisair
MYT/Spanair/Air Luxor/Aero LLoyd/Ryanair/EAC/Easy/Air Malta/EuroAtlantic/Islandflug/Hola Airlines/Titan/Futura/Aegean/Pegasus/Excel/Helios/Fly Be/Air France/Wideroe/Tyrolean/Onur Air/Flightline/Inter Airlines/Malmo Aviation/Norweigan
Groundstar
BA/AMM/TCX/BY/Scandic/Monarch/Iberworld/Air Transat/Sunexpress/Eastern/SN Brussels/KLM uk/MD Airlines/BH air/Hemus/Eurocypria/Air Europa/bmi