Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9ZPL callsign genealogy
Currently held by STRANGE SR, WILLIAM J
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 W9ZPL's current licensee, walking backwards.
- Pudlo, EricILgranted 2025-11-22cancelled 2026-03-24
Successor callsigns
Callsigns held now by people who previously held W9ZPL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9ZPL, oldest first.
- STRANGE SR, WILLIAM J FL2013-07-12 → cancelled 2026-03-06
- Pudlo, Eric IL2026-03-24 active