Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3HJ callsign genealogy
Currently held by JAXHEIMER III, WILLIAM H
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 W3HJ's current licensee, walking backwards.
- JAXHEIMER III, WILLIAM HPAgranted 2009-05-29cancelled 2010-06-19
Successor callsigns
Callsigns held now by people who previously held W3HJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3HJ, oldest first.
- DICKINSON, ROBERT V C PA2007-05-11 → cancelled 2008-05-28
- JAXHEIMER III, WILLIAM H PA2020-06-02 active