Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ACZ callsign genealogy
Currently held by COLLINS, ALLEN G
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 K4ACZ's current licensee, walking backwards.
- COLLINS, ALLEN GSCgranted 2013-09-03cancelled 2020-07-10
Successor callsigns
Callsigns held now by people who previously held K4ACZ.
No current licensee on record previously held this callsign.