Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4DSR callsign genealogy
Currently held by Deep South Amateur Radio Club
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 K4DSR's current licensee, walking backwards.
- KM4TRPcancelledDeep South Amateur Radio ClubALgranted 2016-05-03cancelled 2017-02-22
Successor callsigns
Callsigns held now by people who previously held K4DSR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4DSR, oldest first.
- CHRISTIAN, THOMAS H AL2004-11-03 → cancelled 2017-02-01
- Deep South Amateur Radio Club AL2017-02-22 active