Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9SIL callsign genealogy
Currently held by McFarland, Randall S
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 K9SIL's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K9SIL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9SIL, oldest first.
- Southern Illinois Long Wire Association IL2008-11-14 → cancelled 2020-11-17
- McFarland, Randall S IL2022-12-16 active