Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4HYF callsign genealogy
Currently held by Shaeffer, Bill
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 KN4HYF'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 KN4HYF.
- Shaeffer, BillTNgranted 2017-11-22cancelled 2018-01-05