Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7DXK callsign genealogy
Currently held by Clements, Alvin 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 K7DXK's current licensee, walking backwards.
- Simpson, Kenneth EWAgranted 2008-01-08cancelled 2014-07-25
Successor callsigns
Callsigns held now by people who previously held K7DXK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7DXK, oldest first.
- Clements, Alvin J CO2001-10-30 → cancelled 2013-11-05
- Simpson, Kenneth E WA2024-06-21 active