Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9COL callsign genealogy
Currently held by HUDZINSKI, FRANK G
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 N9COL's current licensee, walking backwards.
- Child, Colonel RINgranted 2024-05-14cancelled 2024-10-18
Successor callsigns
Callsigns held now by people who previously held N9COL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9COL, oldest first.
- HUDZINSKI, FRANK G WI1996-04-04 → cancelled 2008-04-05
- Child, Colonel R IN2024-10-18 active