Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ZJC callsign genealogy
Currently held by FRISK, LARRY P
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 K4ZJC's current licensee, walking backwards.
- FRISK, LARRY PSCgranted 1994-10-18cancelled 2002-06-08
Successor callsigns
Callsigns held now by people who previously held K4ZJC.
No current licensee on record previously held this callsign.