Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WO3J callsign genealogy
Currently held by ZANI, ALBERT
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 WO3J's current licensee, walking backwards.
- Harding, Thomas BPAgranted 2014-04-04cancelled 2014-07-11
Successor callsigns
Callsigns held now by people who previously held WO3J.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WO3J, oldest first.
- ZANI, ALBERT PA2001-04-04 → cancelled 2013-07-03
- Harding, Thomas B PA2024-07-02 active