Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD4CJB callsign genealogy
Currently held by Boivin, Christopher 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 WD4CJB's current licensee, walking backwards.
- Boivin, Christopher JFLgranted 2014-06-23cancelled 2015-07-14
Successor callsigns
Callsigns held now by people who previously held WD4CJB.
No current licensee on record previously held this callsign.