Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9AAO callsign genealogy
Currently held by ZIESE, LOWELL B
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 N9AAO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N9AAO.
No current licensee on record previously held this callsign.