Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC0CQ callsign genealogy
Currently held by Sagamang, David 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 AC0CQ's current licensee, walking backwards.
- Sagamang, Jason ARIgranted 2014-12-01cancelled 2016-03-22
Successor callsigns
Callsigns held now by people who previously held AC0CQ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AC0CQ, oldest first.
- Sagamang, David M RI2010-12-30 → cancelled 2015-12-27
- Sagamang, Jason A RI2026-01-23 active