Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4PUN callsign genealogy
Currently held by PUNDERSON, JOHN M
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 K4PUN's current licensee, walking backwards.
- PUNDERSON, JOHN MFLgranted 2006-06-20cancelled 2007-02-09
Successor callsigns
Callsigns held now by people who previously held K4PUN.
No current licensee on record previously held this callsign.