Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6TH callsign genealogy
Currently held by KLETSKY, JEFFREY 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 W6TH's current licensee, walking backwards.
- KLETSKY, JEFFREY MCAgranted 2011-03-15cancelled 2019-01-01
- WB2JFOno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held W6TH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6TH, oldest first.
- CHIARAPPA, VITO S NH2006-10-04 → cancelled 2018-12-13
- KLETSKY, JEFFREY M CA2019-01-01 active