Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7FSQ callsign genealogy
Currently held by WARWICK, WILLIAM P
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 W7FSQ's current licensee, walking backwards.
- ADDISON, LARRY GAZgranted 2003-07-01cancelled 2003-12-30
Successor callsigns
Callsigns held now by people who previously held W7FSQ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7FSQ, oldest first.
- WARWICK, WILLIAM P WA1988-07-19 → cancelled 2000-07-20
- ADDISON, LARRY G AZ2013-11-01 → cancelled 2026-03-07