Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4RDD callsign genealogy
Currently held by STOLLER, STEVEN M
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 K4RDD's current licensee, walking backwards.
- DAVIS, ROGER DSCgranted 2012-07-23cancelled 2012-08-14
Successor callsigns
Callsigns held now by people who previously held K4RDD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4RDD, oldest first.
- STOLLER, STEVEN M TN1999-01-07 → cancelled 2011-01-08
- DAVIS, ROGER D SC2022-05-21 active