Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4EUH callsign genealogy
Currently held by CROWLEY, 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 KN4EUH'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 KN4EUH.
- CROWLEY, JOHN MNCgranted 2017-12-05