Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4BTJ callsign genealogy
Currently held by Jackson, Timothy 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 W4BTJ's current licensee, walking backwards.
- Jackson, Timothy AFLgranted 2022-01-13cancelled 2022-03-22
Successor callsigns
Callsigns held now by people who previously held W4BTJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4BTJ, oldest first.
- SPECK, WILLIAM R GA2004-06-30 → cancelled 2016-09-21
- Jackson, Timothy A FL2022-03-22 active