Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC4DTM callsign genealogy
Currently held by DOBSON JR, CLOYD L
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 KC4DTM's current licensee, walking backwards.
- Martin, Dylan TTNgranted 2021-10-19cancelled 2021-11-13
Successor callsigns
Callsigns held now by people who previously held KC4DTM.
- Martin, Dylan TTNgranted 2021-11-13
All historical holders
Every license row we've seen with the callsign KC4DTM, oldest first.
- DOBSON JR, CLOYD L NC2007-10-03 → cancelled 2019-12-31
- Martin, Dylan T TN2021-11-13 → cancelled 2022-02-16