Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9PSD callsign genealogy
Currently held by Hall, William D
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 K9PSD's current licensee, walking backwards.
- Hall, William DIAgranted 2013-04-03cancelled 2013-05-24
Successor callsigns
Callsigns held now by people who previously held K9PSD.
- Hall, William DGAgranted 2017-02-10
All historical holders
Every license row we've seen with the callsign K9PSD, oldest first.
- Weiser, Robert J IL1997-10-16 → cancelled 2009-10-17
- Hall, William D IA2013-05-24 → cancelled 2017-02-10