Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK4SP callsign genealogy
Currently held by JARRATT JR, LOUIS H
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 KK4SP's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KK4SP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK4SP, oldest first.
- JARRATT JR, LOUIS H FL1997-04-11 → cancelled 2009-04-14
- PARK, STEVEN E KY2023-07-25 active