Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4CLH callsign genealogy
Currently held by HANNAH, CHRISTOPHER 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 K4CLH's current licensee, walking backwards.
- Harmon, Christopher LVAgranted 2016-03-02cancelled 2017-02-24
Successor callsigns
Callsigns held now by people who previously held K4CLH.
- HANNAH, CHRISTOPHER LNYgranted 2019-03-05cancelled 2019-04-05
All historical holders
Every license row we've seen with the callsign K4CLH, oldest first.
- HANNAH, CHRISTOPHER L FL2002-10-18 → cancelled 2009-04-10
- Harmon, Christopher L VA2017-02-24 active