Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6QF callsign genealogy
Currently held by Olson, Alvin E
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 W6QF's current licensee, walking backwards.
- Halligan, Frederick WCAgranted 2011-04-18cancelled 2011-05-07
Successor callsigns
Callsigns held now by people who previously held W6QF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6QF, oldest first.
- Olson, Alvin E MD2006-11-14 → cancelled 2009-04-14
- Halligan, Frederick W CA2021-10-02 active