Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD6HA callsign genealogy
Currently held by MARTAK, MICHAEL CJ
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 AD6HA'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 AD6HA.
- MARTAK, MICHAEL CJCAgranted 2008-08-22cancelled 2020-11-13