Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5IEO callsign genealogy
Currently held by Holladay, Michael L
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 K5IEO's current licensee, walking backwards.
- Holladay, Michael LARgranted 2020-02-13cancelled 2020-08-21
Successor callsigns
Callsigns held now by people who previously held K5IEO.
No current licensee on record previously held this callsign.