Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0ARL callsign genealogy
Currently held by SIEBRECHT, KARL D
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 K0ARL's current licensee, walking backwards.
- SIEBRECHT, KARL DCOgranted 1993-03-09cancelled 2002-08-31
- KB0FVFno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held K0ARL.
No current licensee on record previously held this callsign.