Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KG7X callsign genealogy
Currently held by SHELDON, ROBERT 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 KG7X's current licensee, walking backwards.
- SHELDON, ROBERT JAZgranted 2012-02-14cancelled 2012-12-18
Successor callsigns
Callsigns held now by people who previously held KG7X.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KG7X, oldest first.
- SHELDON Sr., JACK L AZ2009-03-31 → cancelled 2011-06-06
- SHELDON, ROBERT J AZ2024-04-02 active