AN1 - Dont block door in station , do not lean against door.
AN2 - Thank you for Riding MTA
AN3 - Delay Train traffic 
AN4 - Held By DIspatcher
AN5 - Last Stop , Follow Instructions from train crew
AN6 - Last Stop , Every one please leave train
AN7 - Last Stop , Because of construction
AN8 - Train NIS , Debree on the Track
AN9 - Train NIS , After an erlier Incident
AN10 - Riding outside subway cars is dangerous
AN11 - Strip Maps in service
AN12 - Strip Maps not in service
AN13 - Back packs are subject to search by police
AN14 - On crowded train Hold you back packs and move to middle of car
AN15 - Dont hold car doors open while train is in the station
AN16 - After Incident Trains are running slower speeds
AN17 - To maintain even spacing this train will be held in the station
AN18 - Important message from NYPD , Protect yourself , Remain Alert
AN19 - Planned service changes , Weekend Middays , Overnight hours, dial 511
AN20 - Planned Service Changes (Old)
AN21 - Do Not lean against the doors
AN22 - Please help Keep Subway clean and Litter Free
AN23 - Be Careful of Pickpockets
AN24 - Protect personal property , Dont display electronic devices
AN25 - Soliciting money is illegal
AN26 - Held by Dispatcher (Old)
AN27 - Delay Train traffic (Old)
AN28 - Violation to ride between cars - For rules vist MTA.info
AN29 - Brooklyn Bridge Next , remain inside car
AN30 - Fast Track
Last_dep - Last Stop , Thank you for riding MTA
Dep - Stand clear of doors