Confidence: Medium · Source: FCC ULS · As of 2026-09-15
KC2AAO callsign genealogy
Currently held by HENNING, MARK F
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KC2AAO's current licensee, walking backwards.
- N2DUJno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KC2AAO.
- HENNING, MARK FNYgranted 2018-03-02cancelled 2020-07-25