Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9GSW callsign genealogy
Currently held by HARR, DAVID C
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 K9GSW's current licensee, walking backwards.
- HARR, DAVID CILgranted 2011-12-20cancelled 2021-01-26
Successor callsigns
Callsigns held now by people who previously held K9GSW.
No current licensee on record previously held this callsign.