Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9LRX callsign genealogy
Currently held by Sheffield, Cynthia
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 K9LRX's current licensee, walking backwards.
- Sheffield, CynthiaTXgranted 2012-03-01cancelled 2013-12-10
Successor callsigns
Callsigns held now by people who previously held K9LRX.
No current licensee on record previously held this callsign.