Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5SPJ callsign genealogy
Currently held by Johnson Jr, Sidney P
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 K5SPJ's current licensee, walking backwards.
- Johnson Jr, Sidney PVAgranted 2015-08-27cancelled 2015-11-17
Successor callsigns
Callsigns held now by people who previously held K5SPJ.
No current licensee on record previously held this callsign.