Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KA1JOI callsign genealogy
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 KA1JOI's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KA1JOI.
- KOMISAREK, DANIEL PPAgranted 1997-10-10cancelled 2009-10-14