Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KW4JN callsign genealogy
Currently held by Holt, Michael 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 KW4JN'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 KW4JN.
- Holt, Michael OLAgranted 2019-10-27cancelled 2023-02-23