Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4ZWY callsign genealogy
Currently held by HALCOMB, JEFFREY 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 KJ4ZWY'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 KJ4ZWY.
- HALCOMB, JEFFREY LFLgranted 2011-01-19cancelled 2014-05-20