Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3FY callsign genealogy
Currently held by Holzbach, Mark L
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 K3FY's current licensee, walking backwards.
- Holzbach, Mark LPAgranted 2001-01-18cancelled 2002-10-22
Successor callsigns
Callsigns held now by people who previously held K3FY.
No current licensee on record previously held this callsign.