Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA3YO callsign genealogy
Currently held by Tannahill, Samuel C
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 AA3YO's current licensee, walking backwards.
- Tannahill, Samuel CMDgranted 2001-03-14cancelled 2002-02-20
Successor callsigns
Callsigns held now by people who previously held AA3YO.
No current licensee on record previously held this callsign.