Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0DMR callsign genealogy
Currently held by DC 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 KC0DMR's current licensee, walking backwards.
- KE0CAWcancelledDC AMATEUR RADIO CLUBKSgranted 2014-10-28cancelled 2014-11-18
Successor callsigns
Callsigns held now by people who previously held KC0DMR.
- KREWSON JR, CLAYTON BCOgranted 2010-06-05cancelled 2022-08-30
All historical holders
Every license row we've seen with the callsign KC0DMR, oldest first.
- KREWSON JR, CLAYTON B CO1998-08-19 → cancelled 2000-08-29
- DC AMATEUR RADIO CLUB KS2025-02-04 active