Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO3HL callsign genealogy
Currently held by Koehl, Timothy B
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 KO3HL's current licensee, walking backwards.
- Koehl, Timothy BTXgranted 2007-01-10cancelled 2010-10-01
Successor callsigns
Callsigns held now by people who previously held KO3HL.
No current licensee on record previously held this callsign.