Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KA5CZM callsign genealogy
Currently held by Zuber-Mallison, Carol L
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 KA5CZM's current licensee, walking backwards.
- Zuber-Mallison, Carol LTXgranted 2019-08-22cancelled 2019-09-10
Successor callsigns
Callsigns held now by people who previously held KA5CZM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA5CZM, oldest first.
- ALLEN, BILL L TX2001-09-29 → cancelled 2013-10-08
- Zuber-Mallison, Carol L TX2019-09-10 active