Confidence: Medium · Source: FCC ULS · As of 2026-09-11
AC0CS callsign genealogy
Currently held by Mallory, Donald W
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 AC0CS's current licensee, walking backwards.
- Mallory, Donald WMNgranted 2005-01-21cancelled 2005-06-14
Successor callsigns
Callsigns held now by people who previously held AC0CS.
- MALLORY, DONALD WMNgranted 2024-12-28