Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4MCA callsign genealogy
Currently held by Alameda, Mark C
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 KN4MCA's current licensee, walking backwards.
- Alameda, Mark CTNgranted 2017-11-08cancelled 2018-01-27
Successor callsigns
Callsigns held now by people who previously held KN4MCA.
No current licensee on record previously held this callsign.