Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4MTO callsign genealogy
Currently held by COLE JR, WILLIAM J
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 W4MTO's current licensee, walking backwards.
- Towner Jr, Maynard ATNgranted 2020-02-27cancelled 2024-09-04
Successor callsigns
Callsigns held now by people who previously held W4MTO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4MTO, oldest first.
- COLE JR, WILLIAM J AL2004-09-08 → cancelled 2016-11-22
- TOWNER JR, MAYNARD A TN2024-09-04 active