Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4HOR callsign genealogy
Currently held by Ferguson, Michael P
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 K4HOR's current licensee, walking backwards.
- Ferguson, Michael PFLgranted 2016-10-21cancelled 2017-07-04
Successor callsigns
Callsigns held now by people who previously held K4HOR.
No current licensee on record previously held this callsign.