Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK7DLS callsign genealogy
Currently held by Sherman, Duane 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 KK7DLS's current licensee, walking backwards.
- Sherman, Duane LSDgranted 2019-11-14cancelled 2019-12-03
Successor callsigns
Callsigns held now by people who previously held KK7DLS.
- Sherman, Duane LSDgranted 2020-03-07