Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KW6MAC callsign genealogy
Currently held by Crowley, 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 KW6MAC's current licensee, walking backwards.
- Crowley, MarkCAgranted 2025-07-22cancelled 2025-08-09
Successor callsigns
Callsigns held now by people who previously held KW6MAC.
- Crowley, MarkCAgranted 2025-12-09