Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4JTB callsign genealogy
Currently held by BARRETT, 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 W4JTB's current licensee, walking backwards.
- Bass, Joseph TALgranted 2014-09-08cancelled 2015-03-20
Successor callsigns
Callsigns held now by people who previously held W4JTB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4JTB, oldest first.
- BARRETT, JOHN T VA1999-04-28 → cancelled 2011-04-29
- Bass, Joseph T AL2025-02-13 active