Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7SJO callsign genealogy
Currently held by Jones, Spencer
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 K7SJO's current licensee, walking backwards.
- Jones, SpencerMIgranted 2021-05-24cancelled 2021-06-11
Successor callsigns
Callsigns held now by people who previously held K7SJO.
No current licensee on record previously held this callsign.