Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6JTB callsign genealogy
Currently held by BARR, 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 W6JTB's current licensee, walking backwards.
- N6WMKcancelledcancelled 1997-09-26
Successor callsigns
Callsigns held now by people who previously held W6JTB.
No current licensee on record previously held this callsign.