Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4TBB callsign genealogy
Currently held by AYRES, JAMES R
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 N4TBB's current licensee, walking backwards.
- BEASLEY, THOMAS BSCgranted 2020-02-10cancelled 2020-03-20
Successor callsigns
Callsigns held now by people who previously held N4TBB.
- AYRES, JAMES RTXgranted 2017-03-30
All historical holders
Every license row we've seen with the callsign N4TBB, oldest first.
- AYRES, JAMES R TX2007-05-26 → cancelled 2007-06-22
- BEASLEY, THOMAS B SC2020-03-20 active