Confidence: Medium · Source: FCC ULS · As of 2026-09-15
KN4HZZ callsign genealogy
Currently held by HEARN, ROBERT R
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 KN4HZZ's current licensee, walking backwards.
- HEARN, ROBERT RGAgranted 2011-06-29cancelled 2017-11-28
- KA1VFJno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KN4HZZ.
No current licensee on record previously held this callsign.