Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9ETC callsign genealogy
Currently held by Callanan, Patrick 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 K9ETC's current licensee, walking backwards.
- Callanan, Patrick JINgranted 2015-10-09cancelled 2016-02-26
Successor callsigns
Callsigns held now by people who previously held K9ETC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9ETC, oldest first.
- DZIAK, SYLVESTER J IL1997-02-20 → cancelled 2009-02-21
- Callanan, Patrick J IN2026-01-21 active