Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KN4DZ callsign genealogy
Currently held by PARKER, ROBERT 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 KN4DZ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KN4DZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KN4DZ, oldest first.
- PARKER, ROBERT L FL1999-11-16 → cancelled 2012-02-07
- Shaeffer, Bill TN2018-01-05 active