Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KR4SL callsign genealogy
Currently held by Chauncey Sr, Charles R
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 KR4SL's current licensee, walking backwards.
- KD4CSNno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KR4SL.
- Chauncey Sr, Charles RTNgranted 2013-01-01cancelled 2025-01-03