I recently checked on the Internet and discovered that 999kHz 2ST Nowra NSW AUS closed its AM transmitter on March 1, 2021. It now resides on 91.7MHz FM.
999kHz is still used by 2NB Broken Hill NSW AUS.
Just of interest, 2ST commenced in 1972 on 1000kHz. Despite living up in Sydney NSW back then, 2ST could only be heard at night and not during the daytime.
Robert Copeman to ICDX-AM groups.io (2021-03-26)