Heard Z-342 on Tuesday 8/27/19 speaking to SHP Helo Ida 423, about other helos in the air, so apparently they do still exist. That's what prompted my post. On a side note, the RID was very similar to what has been used by Governor's detail (2160084 heard as Z unit, Governor's detail 2160085).
Ida 4xx are Air Ops (Heard)
Ida 2xx are Motorcycle Units (Heard)
Have listed I-3xx Collision Reconstruction and I-1xx Criminal Interdiction Team (Neither heard)