Confidence: Medium · Source: FCC ULS · As of 2026-09-15
W7BNL callsign genealogy
Currently held by Mast, David A
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 W7BNL's current licensee, walking backwards.
- Mast, David AMTgranted 1998-10-21cancelled 2004-07-09
Successor callsigns
Callsigns held now by people who previously held W7BNL.
No current licensee on record previously held this callsign.