Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC4TDS callsign genealogy
Currently held by Squire, William L
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 KC4TDS's current licensee, walking backwards.
- KC4SLNno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KC4TDS.
- SQUIRE, WILLIAM LFLgranted 2012-01-27cancelled 2024-04-05