Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9RWX callsign genealogy
Currently held by Heaslet, Patrick
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 K9RWX's current licensee, walking backwards.
- Heaslet, PatrickCOgranted 2010-05-01cancelled 2016-05-13
Successor callsigns
Callsigns held now by people who previously held K9RWX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9RWX, oldest first.
- Frost, Richard E IN2002-03-21 → cancelled 2014-03-22
- Heaslet, Patrick CO2016-05-13 active