Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1ZMA callsign genealogy
Currently held by PUPPO, KC
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 K1ZMA's current licensee, walking backwards.
- PUPPO, KCORgranted 2014-08-20cancelled 2023-12-05
Successor callsigns
Callsigns held now by people who previously held K1ZMA.
- PORFERT, FREDERIC NFLgranted 2025-08-16
All historical holders
Every license row we've seen with the callsign K1ZMA, oldest first.
- PORFERT, FREDERIC N FL2015-01-07 → cancelled 2015-11-10
- PUPPO, KC OR2023-12-05 active