Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9PDZ callsign genealogy
Currently held by ZARING, PAUL D
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 K9PDZ's current licensee, walking backwards.
- ZARING, PAUL DILgranted 2019-03-26cancelled 2021-01-29
Successor callsigns
Callsigns held now by people who previously held K9PDZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9PDZ, oldest first.
- ANDERSON, HARRIS A IL1999-11-18 → cancelled 2011-12-06
- ZARING, PAUL D IL2021-01-29 active