Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OLH callsign genealogy
Currently held by Carmichael, David 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 K4OLH's current licensee, walking backwards.
- Carmichael, David LGAgranted 2021-03-22cancelled 2021-04-27
Successor callsigns
Callsigns held now by people who previously held K4OLH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4OLH, oldest first.
- CANNON, MILES K GA1997-07-24 → cancelled 2009-07-25
- Carmichael, David L GA2021-04-27 active