Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ7XK callsign genealogy
Currently held by ROBERTSON, ELMER 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 KJ7XK's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KJ7XK.
- ROBERTSON, ROBERT JIDgranted 2013-02-02cancelled 2017-01-19
All historical holders
Every license row we've seen with the callsign KJ7XK, oldest first.
- ROBERTSON, ELMER J ID1996-07-31 → cancelled 2001-06-15
- ROBERTSON, ROBERT J ID2002-12-27 → cancelled 2003-03-04