Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0OOF callsign genealogy
Currently held by BIRKS, DONALD W
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 W0OOF's current licensee, walking backwards.
- Balaison, JacoboCAgranted 2015-09-10cancelled 2016-01-05
Successor callsigns
Callsigns held now by people who previously held W0OOF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0OOF, oldest first.
- BIRKS, DONALD W MN2003-09-25 → cancelled 2015-11-24
- Balaison, Jacobo CA2016-01-05 active