Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WC9J callsign genealogy
Currently held by DOERR, CHARLES B
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 WC9J's current licensee, walking backwards.
- ROBERTS, JOHN CTXgranted 2008-03-28cancelled 2011-02-15
Successor callsigns
Callsigns held now by people who previously held WC9J.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WC9J, oldest first.
- DOERR, CHARLES B IL1998-05-04 → cancelled 2010-05-05
- ROBERTS, JOHN C TX2021-03-01 active