Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD1LS callsign genealogy
Currently held by Lincoln-Sudbury Regional High School Amateur Radio Club
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 KD1LS's current licensee, walking backwards.
- KC1YPYcancelledLincoln-Sudbury Regional High School Amateur Radio ClubMAgranted 2025-12-04cancelled 2026-01-03
Successor callsigns
Callsigns held now by people who previously held KD1LS.
- DICKERSON, MICHAEL ACAgranted 2013-02-09cancelled 2025-02-11
All historical holders
Every license row we've seen with the callsign KD1LS, oldest first.
- DICKERSON, MICHAEL A CT2003-03-20 → cancelled 2013-02-09
- Lincoln-Sudbury Regional High School Amateur Radio Club MA2026-01-03 active