Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB6ZJA callsign genealogy
Currently held by Poulos, William
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 WB6ZJA's current licensee, walking backwards.
- Poulos, WilliamCAgranted 2023-07-11cancelled 2023-08-08
Successor callsigns
Callsigns held now by people who previously held WB6ZJA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB6ZJA, oldest first.
- POULOS, WILLIAM J CA2012-01-31 → cancelled 2021-08-20
- Poulos, William CA2023-08-08 active