Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9BLI callsign genealogy
Currently held by DERENNE, JACOB 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 W9BLI's current licensee, walking backwards.
- DERENNE, JACOB Jcancelled 1998-04-22
Successor callsigns
Callsigns held now by people who previously held W9BLI.
No current licensee on record previously held this callsign.