Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4JMH callsign genealogy
Currently held by Hatch, J 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 KJ4JMH's current licensee, walking backwards.
- Hatch, John MFLgranted 2008-11-18cancelled 2008-12-12
Successor callsigns
Callsigns held now by people who previously held KJ4JMH.
No current licensee on record previously held this callsign.