Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KL4YFD callsign genealogy
Currently held by Phelps, John A
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 KL4YFD's current licensee, walking backwards.
- PHELPS, JOHN AAKgranted 1998-05-01cancelled 2007-02-08
Successor callsigns
Callsigns held now by people who previously held KL4YFD.
No current licensee on record previously held this callsign.