Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4SJJ callsign genealogy
Currently held by Johnson, Sandra J
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 K4SJJ's current licensee, walking backwards.
- Johnson, Sandra JSCgranted 2009-01-06cancelled 2016-11-01
Successor callsigns
Callsigns held now by people who previously held K4SJJ.
No current licensee on record previously held this callsign.