Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4SLO callsign genealogy
Currently held by DAILEY, MICHAEL S
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 K4SLO's current licensee, walking backwards.
- DAILEY, MICHAEL STNgranted 2024-10-12
Successor callsigns
Callsigns held now by people who previously held K4SLO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4SLO, oldest first.
- DAILEY, CHARLES H TN2007-07-07 → cancelled 2019-07-09
- DAILEY, MICHAEL S TN2022-04-05 → cancelled 2022-04-19