Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1KSQ callsign genealogy
Currently held by Dearth, David A
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 N1KSQ's current licensee, walking backwards.
- Dearth, David ANHgranted 2004-01-27cancelled 2007-07-31
Successor callsigns
Callsigns held now by people who previously held N1KSQ.
- Dearth, David AFLgranted 2022-02-02
All historical holders
Every license row we've seen with the callsign N1KSQ, oldest first.
- COFFIN, THOMAS R ME1991-12-10 → cancelled 2003-12-11
- Dearth, David A FL2007-07-31 → cancelled 2012-04-24