Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1TFM callsign genealogy
Currently held by MARSTERS JR, THOMAS F
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 W1TFM's current licensee, walking backwards.
- MARSTERS JR, THOMAS FMAgranted 1993-09-21cancelled 2002-06-15
Successor callsigns
Callsigns held now by people who previously held W1TFM.
No current licensee on record previously held this callsign.