Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9CZ callsign genealogy
Currently held by Manton, William J
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 N9CZ's current licensee, walking backwards.
- Manton, William JILgranted 2023-05-16cancelled 2026-04-11
Successor callsigns
Callsigns held now by people who previously held N9CZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9CZ, oldest first.
- Lundmark, Daniel J LA2014-03-19 → cancelled 2026-03-21
- Manton, William J IL2026-04-11 active