Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN9K callsign genealogy
Currently held by FITCH, RICHARD C
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 KN9K's current licensee, walking backwards.
- Polsene, John MILgranted 2006-02-17cancelled 2008-08-12
Successor callsigns
Callsigns held now by people who previously held KN9K.
- FITCH, RICHARD CTXgranted 2018-11-16
All historical holders
Every license row we've seen with the callsign KN9K, oldest first.
- POLSENE, JOHN M AZ2018-05-21 active
- FITCH, RICHARD C— → cancelled 1999-02-10