Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NA3MD callsign genealogy
Currently held by Maryland Explorers Radio Club
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 NA3MD's current licensee, walking backwards.
- KC3JHRcancelledMaryland Explorers Radio ClubMDgranted 2017-05-31cancelled 2017-06-27
Successor callsigns
Callsigns held now by people who previously held NA3MD.
No current licensee on record previously held this callsign.