Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9TSQ callsign genealogy
Currently held by Martin, Michael 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 W9TSQ's current licensee, walking backwards.
- Martin, Michael CWIgranted 2011-03-01cancelled 2011-04-01
Successor callsigns
Callsigns held now by people who previously held W9TSQ.
- MARTIN, MICHAEL CWIgranted 2026-06-12