Longshot, bit back in the day, the F111 strike (Aardvark) and EF111 electronic countermeasures (SparkVark) aircraft were used by US & AUS. Retired a decade or more ago. When I see "111" that immediately jumps to mind, although "111" could be "III" (%ers) which is entirely different.
Several other 111th possibles:
https:// en.wikipedia.org/wiki/111th
111th Reconnaissance Squadron, an MQ-1 flying squadron attached to the 147th Operations Group, 147th Reconnaissance Wing
111th Space Operations Squadron, an Air National Guard space communications unit at Sky Harbor International Airport, Arizona