Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MAI callsign genealogy
Currently held by Irish, Mark
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 K4MAI's current licensee, walking backwards.
- Irish, MarkVAgranted 2022-05-11cancelled 2025-01-24
Successor callsigns
Callsigns held now by people who previously held K4MAI.
No current licensee on record previously held this callsign.