Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4YFK callsign genealogy
Currently held by UPSTATE DIGITAL AMATEUR RADIO CLUB
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 KN4YFK'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 KN4YFK.
- N4SPAactiveUPSTATE DIGITAL AMATEUR RADIO CLUBSCgranted 2019-10-04