Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9ZL callsign genealogy
Currently held by Brooks, John O
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 N9ZL's current licensee, walking backwards.
- Brooks, John OVAgranted 2002-12-18cancelled 2007-02-13
Successor callsigns
Callsigns held now by people who previously held N9ZL.
No current licensee on record previously held this callsign.