Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4FOW callsign genealogy
Currently held by Birge, Gregory O
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 KN4FOW's current licensee, walking backwards.
- Birge, Gregory OFLgranted 2017-08-28cancelled 2017-08-29
Successor callsigns
Callsigns held now by people who previously held KN4FOW.
No current licensee on record previously held this callsign.