Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4SJA callsign genealogy
Currently held by ADDISON, STEVEN 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 K4SJA's current licensee, walking backwards.
- ADDISON, STEVEN JKYgranted 1999-07-26cancelled 2000-08-29
Successor callsigns
Callsigns held now by people who previously held K4SJA.
No current licensee on record previously held this callsign.