Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0CZZ callsign genealogy
Currently held by SCHWANKL, THOMAS A
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 K0CZZ's current licensee, walking backwards.
- SCHWANKL, THOMAS AMNgranted 2018-01-03cancelled 2019-11-22
Successor callsigns
Callsigns held now by people who previously held K0CZZ.
No current licensee on record previously held this callsign.