Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4SIM callsign genealogy
Currently held by Cath, Simke
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 K4SIM's current licensee, walking backwards.
- Cath, SimkeVAgranted 2000-04-19cancelled 2008-03-14
Successor callsigns
Callsigns held now by people who previously held K4SIM.
No current licensee on record previously held this callsign.