Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9SIV callsign genealogy
Currently held by QUILES, WILLIAM
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 N9SIV's current licensee, walking backwards.
- QUILES, WILLIAMTXgranted 2018-11-21cancelled 2018-12-11
Successor callsigns
Callsigns held now by people who previously held N9SIV.
- QUILES, WILLIAMTXgranted 2022-12-23
All historical holders
Every license row we've seen with the callsign N9SIV, oldest first.
- QUILES TORRES, WILLIAM IN1993-02-16 → cancelled 2005-02-17
- QUILES, WILLIAM TX2018-12-11 → cancelled 2022-12-23