Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9DAC callsign genealogy
Currently held by WILLIAMS, THOMAS M
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 K9DAC's current licensee, walking backwards.
- WILLIAMS, THOMAS MOHgranted 2010-11-23cancelled 2010-12-17
Successor callsigns
Callsigns held now by people who previously held K9DAC.
- CARTER, DAVIDKSgranted 2014-10-22cancelled 2016-06-01
All historical holders
Every license row we've seen with the callsign K9DAC, oldest first.
- CARTER, DAVID A KS2004-11-30 → cancelled 2005-01-04
- WILLIAMS, THOMAS M OH2020-10-14 active