Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB5PJC callsign genealogy
Currently held by Clark, William I
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 WB5PJC's current licensee, walking backwards.
- Clark, William IFLgranted 2025-01-22cancelled 2025-02-11
Successor callsigns
Callsigns held now by people who previously held WB5PJC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB5PJC, oldest first.
- CLARK, WILLIAM I FL1999-07-09 → cancelled 2011-07-12
- Clark, William I FL2025-02-11 active