Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6MJA callsign genealogy
Currently held by Alfaro, 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 K6MJA's current licensee, walking backwards.
- Alfaro, MarkCAgranted 2020-10-19cancelled 2021-07-09
Successor callsigns
Callsigns held now by people who previously held K6MJA.
No current licensee on record previously held this callsign.