Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KW4JMH callsign genealogy
Currently held by Herald, 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 KW4JMH's current licensee, walking backwards.
- Herald, John MGAgranted 2018-05-15cancelled 2018-06-08
Successor callsigns
Callsigns held now by people who previously held KW4JMH.
No current licensee on record previously held this callsign.