Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4PNU callsign genealogy
Currently held by Copeland, Mark J
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 K4PNU's current licensee, walking backwards.
- Copeland Mr., Mark JFLgranted 2003-05-13cancelled 2003-11-01
Successor callsigns
Callsigns held now by people who previously held K4PNU.
No current licensee on record previously held this callsign.