Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9CAL callsign genealogy
Currently held by WILLIAMS, CALVIN J
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 K9CAL's current licensee, walking backwards.
- WILLIAMS, CALVIN JWIgranted 1998-04-30cancelled 2006-03-07
Successor callsigns
Callsigns held now by people who previously held K9CAL.
No current licensee on record previously held this callsign.