Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4HHB callsign genealogy
Currently held by Caldwell, Jack
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 W4HHB's current licensee, walking backwards.
- Caldwell, JackFLgranted 2024-01-13cancelled 2024-02-03
Successor callsigns
Callsigns held now by people who previously held W4HHB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4HHB, oldest first.
- SCHOFFSTALL, ROBERT O GA2008-03-26 → cancelled 2020-06-25
- Caldwell, Jack FL2024-02-03 active