Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC0TW callsign genealogy
Currently held by Champion, Matthew P
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 AC0TW's current licensee, walking backwards.
- Champion, Matthew PMOgranted 2010-02-26cancelled 2010-11-10
Successor callsigns
Callsigns held now by people who previously held AC0TW.
No current licensee on record previously held this callsign.