Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3FEF callsign genealogy
Currently held by Pfaeffle, Michael L
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 K3FEF's current licensee, walking backwards.
- Pfaeffle, Michael LPAgranted 2015-06-29cancelled 2015-07-31
Successor callsigns
Callsigns held now by people who previously held K3FEF.
No current licensee on record previously held this callsign.