Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0PDQ callsign genealogy
Currently held by MENTZER, JON M
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 K0PDQ's current licensee, walking backwards.
- MENTZER, JON MCOgranted 2013-11-19cancelled 2019-05-24
Successor callsigns
Callsigns held now by people who previously held K0PDQ.
No current licensee on record previously held this callsign.