Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4TDS 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 N4TDS's current licensee, walking backwards.
- Squire, William LFLgranted 2000-10-25cancelled 2002-04-04
- KC4SLNno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held N4TDS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4TDS, oldest first.
- OWEN, JOE L GA1988-06-14 → cancelled 2000-06-15
- SQUIRE, WILLIAM L FL2012-01-27 → cancelled 2024-04-05