Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC4SAR callsign genealogy
Currently held by CANINE EMERGENCY RESPONSE TEAM
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 KC4SAR's current licensee, walking backwards.
- KNOWLES III, CHARLES PGAgranted 2014-10-15cancelled 2017-10-03
Successor callsigns
Callsigns held now by people who previously held KC4SAR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC4SAR, oldest first.
- CANINE EMERGENCY RESPONSE TEAM IL2005-02-08 → cancelled 2017-02-09
- KNOWLES III, CHARLES P GA2017-10-03 active