Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4FAP callsign genealogy
Currently held by Kocher, Troy 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 K4FAP's current licensee, walking backwards.
- Kocher, Troy ATNgranted 1999-10-21cancelled 2009-03-10
Successor callsigns
Callsigns held now by people who previously held K4FAP.
No current licensee on record previously held this callsign.