Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3HDF callsign genealogy
Currently held by Kenwood High School Radio Club
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 KB3HDF's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KB3HDF.
- K3KHScancelledKenwood High School Radio ClubMDgranted 2004-10-08cancelled 2006-05-12