Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9TBB callsign genealogy
Currently held by Bernstein, Theresa A
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 KC9TBB's current licensee, walking backwards.
- Bernstein, Theresa AWIgranted 2006-02-07cancelled 2006-04-25
Successor callsigns
Callsigns held now by people who previously held KC9TBB.
No current licensee on record previously held this callsign.