Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1ASB callsign genealogy
Currently held by O DONNELL, JOHN
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 W1ASB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W1ASB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1ASB, oldest first.
- O DONNELL, JOHN FL1987-09-01 → cancelled 1999-09-02
- BORAWSKI, ADAM S CT2018-10-15 active