Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA5DUC callsign genealogy
Currently held by HOULIHAN, KATHLEEN
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 WA5DUC's current licensee, walking backwards.
- HOULIHAN, KATHLEENTXgranted 2025-01-22cancelled 2025-02-11
Successor callsigns
Callsigns held now by people who previously held WA5DUC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA5DUC, oldest first.
- SHEPARD, EUGENE N TX2000-12-28 → cancelled 2013-03-28
- HOULIHAN, KATHLEEN TX2025-02-11 active