Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5SZ callsign genealogy
Currently held by Folk, Harry B
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 W5SZ's current licensee, walking backwards.
- Folk, Harry BTXgranted 2012-05-08cancelled 2014-05-09
Successor callsigns
Callsigns held now by people who previously held W5SZ.
- BURNS, BILL DTXgranted 2022-02-16
All historical holders
Every license row we've seen with the callsign W5SZ, oldest first.
- BURNS, BILL D OK2007-03-17 → cancelled 2012-04-20
- Folk, Harry B TX2024-02-21 active