Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NA1CS callsign genealogy
Currently held by Schwartz, Charles 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 NA1CS's current licensee, walking backwards.
- Schwartz, Charles MMDgranted 2016-11-14cancelled 2017-03-04
Successor callsigns
Callsigns held now by people who previously held NA1CS.
No current licensee on record previously held this callsign.