Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC5YF callsign genealogy
Currently held by Martin, Cyril V
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 AC5YF's current licensee, walking backwards.
- MARTIN, CYRIL VTXgranted 1991-07-09cancelled 2000-06-13
- WB5PYZno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AC5YF.
- Martin, Cyril VTXgranted 2001-03-20cancelled 2009-04-24