Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1FX callsign genealogy
Currently held by Harmon, Michael J
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 KB1FX's current licensee, walking backwards.
- Harmon, Michael JMAgranted 2000-11-22cancelled 2001-08-07
Successor callsigns
Callsigns held now by people who previously held KB1FX.
No current licensee on record previously held this callsign.