Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA3TO callsign genealogy
Currently held by Cantz, John T
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 AA3TO's current licensee, walking backwards.
- CANTZ, JOHN TPAgranted 1992-06-16cancelled 2000-04-19
- KB3AAKno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AA3TO.
No current licensee on record previously held this callsign.