Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NW3R callsign genealogy
Currently held by HENRY, FREDERIC H
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 NW3R's current licensee, walking backwards.
- KB3RWPcancelledInterior Radio ClubMDgranted 2008-11-06cancelled 2008-12-02
Successor callsigns
Callsigns held now by people who previously held NW3R.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NW3R, oldest first.
- HENRY, FREDERIC H MD1989-10-10 → cancelled 2001-10-11
- Interior Radio Club MD2019-01-30 active