Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KL1MJH callsign genealogy
Currently held by Hall, Martin J
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 KL1MJH's current licensee, walking backwards.
- Hall, Martin JAKgranted 2011-04-22cancelled 2016-04-26
Successor callsigns
Callsigns held now by people who previously held KL1MJH.
- Hall, Martin JAKgranted 2016-06-03