Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4TJL callsign genealogy
Currently held by CARPENTER, JOHN W
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 K4TJL's current licensee, walking backwards.
- Loposser, Timothy JTNgranted 2016-05-09cancelled 2016-05-27
Successor callsigns
Callsigns held now by people who previously held K4TJL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4TJL, oldest first.
- CARPENTER, JOHN W GA1997-05-02 → cancelled 2009-05-05
- Loposser, Timothy J TN2026-02-28 active