Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1BWX callsign genealogy
Currently held by O Brien, 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 W1BWX's current licensee, walking backwards.
- O Brien, David AMAgranted 2002-09-24cancelled 2002-10-22
Successor callsigns
Callsigns held now by people who previously held W1BWX.
No current licensee on record previously held this callsign.