Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0DZ callsign genealogy
Currently held by ZIMMER, RICHARD C
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 K0DZ's current licensee, walking backwards.
- TILLERY JR, WILLIAM LCOgranted 2015-04-07cancelled 2020-11-13
Successor callsigns
Callsigns held now by people who previously held K0DZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0DZ, oldest first.
- ZIMMER, RICHARD C CA2008-10-24 → cancelled 2020-10-27
- TILLERY JR, WILLIAM L CO2020-11-13 active