Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1DTL callsign genealogy
Currently held by LEFFLER 442, David T
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 K1DTL's current licensee, walking backwards.
- Leffler, David TMNgranted 2018-03-22cancelled 2018-04-10
Successor callsigns
Callsigns held now by people who previously held K1DTL.
No current licensee on record previously held this callsign.