Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4NLN callsign genealogy
Currently held by AVINGER, JOHN O
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 K4NLN's current licensee, walking backwards.
- AVINGER, JOHN OSCgranted 2007-02-05cancelled 2007-02-27
Successor callsigns
Callsigns held now by people who previously held K4NLN.
No current licensee on record previously held this callsign.