Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9DPD callsign genealogy
Currently held by KIERZKOWSKI, DAVID L
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 K9DPD's current licensee, walking backwards.
- KIERZKOWSKI, DAVID LMIgranted 2017-01-04cancelled 2018-09-28
Successor callsigns
Callsigns held now by people who previously held K9DPD.
No current licensee on record previously held this callsign.