Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4KSW callsign genealogy
Currently held by ERNISSEE, JOHN A
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 K4KSW's current licensee, walking backwards.
- Ernissee, John AFLgranted 2005-06-21cancelled 2006-06-17
Successor callsigns
Callsigns held now by people who previously held K4KSW.
No current licensee on record previously held this callsign.