Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA9ZDC callsign genealogy
Currently held by SWARTWOUT, RAYMOND L
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 WA9ZDC's current licensee, walking backwards.
- KD9HIAcancelledSwartwout Family Radio ClubWIgranted 2016-11-09cancelled 2016-11-29
Successor callsigns
Callsigns held now by people who previously held WA9ZDC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA9ZDC, oldest first.
- SWARTWOUT, RAYMOND L IL1995-04-04 → cancelled 2004-01-31
- Swartwout Family Radio Club MA2016-11-29 active