Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0STL callsign genealogy
Currently held by FRANCOIS, RONALD M
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 K0STL's current licensee, walking backwards.
- FRANCOIS, RONALD MMOgranted 2000-03-03cancelled 2000-03-24
- KA0YSSno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held K0STL.
No current licensee on record previously held this callsign.