Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9DSD callsign genealogy
Currently held by DILL, DAVID S
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 K9DSD's current licensee, walking backwards.
- Dill, David SALgranted 2014-04-16cancelled 2016-11-15
Successor callsigns
Callsigns held now by people who previously held K9DSD.
- Dill, David SCOgranted 2022-02-05
All historical holders
Every license row we've seen with the callsign K9DSD, oldest first.
- DILL, DAVID S MA2001-02-03 → cancelled 2013-02-05
- Dill, David S CO2016-11-15 → cancelled 2022-02-05