Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC9QC callsign genealogy
Currently held by Underwood II, Howard A
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 AC9QC's current licensee, walking backwards.
- Underwood, Howard AILgranted 2015-04-14cancelled 2017-04-04
Successor callsigns
Callsigns held now by people who previously held AC9QC.
No current licensee on record previously held this callsign.