Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4CFH callsign genealogy
Currently held by Haerlin, Cary
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 W4CFH's current licensee, walking backwards.
- Haerlin, CaryFLgranted 2021-02-24cancelled 2021-03-19
Successor callsigns
Callsigns held now by people who previously held W4CFH.
- Hennis 404, CharlesINgranted 2018-12-21
All historical holders
Every license row we've seen with the callsign W4CFH, oldest first.
- HENNIS, CHARLES F IN2017-10-16 → cancelled 2018-12-21
- Haerlin, Cary FL2021-03-19 active