Confidence: Medium · Source: FCC ULS · As of 2026-10-06
W6ZZF callsign genealogy
Currently held by SWEITZER, LESLIE M
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 W6ZZF's current licensee, walking backwards.
- Canterbury, Joseph PCAgranted 2026-09-09cancelled 2026-09-29
Successor callsigns
Callsigns held now by people who previously held W6ZZF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6ZZF, oldest first.
- SWEITZER, LESLIE M CA1995-02-27 → cancelled 2007-02-28
- Canterbury, Joseph p CA2026-09-29 active