Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9WLH callsign genealogy
Currently held by Hecko, John M
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 KB9WLH's current licensee, walking backwards.
- HECKO, JOHN MKYgranted 1990-12-31cancelled 2000-06-08
- KC4UJLno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KB9WLH.
- Hecko, John MINgranted 2020-11-13