Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1SMN callsign genealogy
Currently held by HALBERT, JOHN R
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 W1SMN's current licensee, walking backwards.
- HALBERT, JOHN RNHgranted 2007-06-09cancelled 2008-12-06
Successor callsigns
Callsigns held now by people who previously held W1SMN.
No current licensee on record previously held this callsign.