Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4RSI callsign genealogy
Currently held by McBride, Tom 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 K4RSI's current licensee, walking backwards.
- McBride, Tom PKYgranted 2003-06-30cancelled 2003-08-02
Successor callsigns
Callsigns held now by people who previously held K4RSI.
No current licensee on record previously held this callsign.