Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA4TB callsign genealogy
Currently held by Billings, Thomas L
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 AA4TB's current licensee, walking backwards.
- Billings, Thomas LSCgranted 2003-11-26cancelled 2004-12-10
- KG0JQno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AA4TB.
No current licensee on record previously held this callsign.