Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1LSD callsign genealogy
Currently held by Hackett, Patrick T
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 W1LSD's current licensee, walking backwards.
- Nguyen, JasonCTgranted 2015-10-14cancelled 2019-12-07
Successor callsigns
Callsigns held now by people who previously held W1LSD.
- Hackett, Patrick TCTgranted 2021-01-28
All historical holders
Every license row we've seen with the callsign W1LSD, oldest first.
- TRUE, WILLIAM A ME1998-08-14 → cancelled 2010-08-17
- Hackett, Patrick T CT2010-11-09 → cancelled 2011-02-15
- Nguyen, Jason CT2019-12-07 active