Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4TRM callsign genealogy
Currently held by MORRISON, THOMAS R
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 W4TRM's current licensee, walking backwards.
- Morrison, Thomas RNCgranted 2003-04-21cancelled 2003-11-04
Successor callsigns
Callsigns held now by people who previously held W4TRM.
No current licensee on record previously held this callsign.