Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7ALX callsign genealogy
Currently held by CAMPBELL, JOHN F
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 K7ALX's current licensee, walking backwards.
- Sheppard, Alex RWAgranted 2013-03-28cancelled 2013-04-20
Successor callsigns
Callsigns held now by people who previously held K7ALX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7ALX, oldest first.
- CAMPBELL, JOHN F OR1996-06-19 → cancelled 2004-05-20
- Sheppard, Alex R WA2023-07-25 active