Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4SWO callsign genealogy
Currently held by Otto, Scott W
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 K4SWO's current licensee, walking backwards.
- Otto, Scott WFLgranted 2002-02-14cancelled 2002-06-11
Successor callsigns
Callsigns held now by people who previously held K4SWO.
No current licensee on record previously held this callsign.