Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4OJL callsign genealogy
Currently held by McDow Jr, Alvis E
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 KN4OJL's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KN4OJL.
- McDow Jr, Alvis EFLgranted 2018-09-01