Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4TCM callsign genealogy
Currently held by Martindale, Thomas C
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 K4TCM's current licensee, walking backwards.
- MARTINDALE, THOMAS CVAgranted 2001-02-13cancelled 2001-03-06
Successor callsigns
Callsigns held now by people who previously held K4TCM.
No current licensee on record previously held this callsign.