Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4TMC callsign genealogy
Currently held by COBURN, THOMAS M
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 W4TMC's current licensee, walking backwards.
- COBURN, THOMAS MFLgranted 1993-07-13cancelled 2001-07-07
- N2ANZno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held W4TMC.
No current licensee on record previously held this callsign.