Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0MRT callsign genealogy
Currently held by Tibbetts, Michael 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 W0MRT's current licensee, walking backwards.
- Tibbetts, Michael RKSgranted 2006-02-22cancelled 2014-01-28
Successor callsigns
Callsigns held now by people who previously held W0MRT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0MRT, oldest first.
- HOTZE, SYLVESTER J FL1995-08-25 → cancelled 2007-08-28
- Tibbetts, Michael R KS2023-12-28 active