Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX4YL callsign genealogy
Currently held by PHILLIPS, MICHAEL T
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 KX4YL's current licensee, walking backwards.
- PHILLIPS, MICHAEL TSCgranted 2020-05-11cancelled 2020-05-18
Successor callsigns
Callsigns held now by people who previously held KX4YL.
No current licensee on record previously held this callsign.