Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9JHM callsign genealogy
Currently held by March, Joseph H
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 K9JHM's current licensee, walking backwards.
- MARCH, JOSEPH HINgranted 1998-10-15cancelled 2002-07-09
Successor callsigns
Callsigns held now by people who previously held K9JHM.
- March, Joseph HINgranted 2017-06-23