Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC1ZSK callsign genealogy
Currently held by Almeida PhD, David M
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 KC1ZSK'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 KC1ZSK.
- Almeida PhD, David MMAgranted 2026-07-31