Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7DIA callsign genealogy
Currently held by SLIDE MOUNTAIN AMATEUR RADIO TRANSMITTING SOC
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 K7DIA's current licensee, walking backwards.
- Cullumber, DavidUTgranted 2018-11-15cancelled 2019-05-07
Successor callsigns
Callsigns held now by people who previously held K7DIA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7DIA, oldest first.
- SLIDE MOUNTAIN AMATEUR RADIO TRANSMITTING SOC NV1997-02-12 → cancelled 2009-02-13
- Cullumber, David UT2019-05-07 active