Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4TJC callsign genealogy
Currently held by Cantwell, Timothy J
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 K4TJC's current licensee, walking backwards.
- Cantwell, Timothy JMSgranted 2007-05-04cancelled 2015-11-03
Successor callsigns
Callsigns held now by people who previously held K4TJC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4TJC, oldest first.
- WEATHERS, MARVIN R SC1994-08-12 → cancelled 2006-08-15
- Cantwell, Timothy J LA2015-11-03 active