Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4IAO callsign genealogy
Currently held by Parenton, Collin 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 K4IAO's current licensee, walking backwards.
- Parenton, Collin DFLgranted 2012-03-23cancelled 2012-06-30
Successor callsigns
Callsigns held now by people who previously held K4IAO.
No current licensee on record previously held this callsign.