Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KA4DZM callsign genealogy
Currently held by Coffey, Joseph M
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 KA4DZM's current licensee, walking backwards.
- Coffey, Joseph MVAgranted 2021-07-20cancelled 2021-10-09
Successor callsigns
Callsigns held now by people who previously held KA4DZM.
No current licensee on record previously held this callsign.