Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4JAJ callsign genealogy
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 K4JAJ's current licensee, walking backwards.
- Johnson, Jesica ANCgranted 2006-08-22cancelled 2006-09-12
Successor callsigns
Callsigns held now by people who previously held K4JAJ.
- PLICHTA, THOMAS ESCgranted 2017-05-08
All historical holders
Every license row we've seen with the callsign K4JAJ, oldest first.
- Johnson, Jesica A NC2026-07-14 active
- —— → cancelled 1997-08-04