Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4DTM callsign genealogy
Currently held by Davis, Timothy 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 W4DTM's current licensee, walking backwards.
- Davis, Timothy MFLgranted 2018-04-30cancelled 2021-10-30
Successor callsigns
Callsigns held now by people who previously held W4DTM.
No current licensee on record previously held this callsign.