Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6JSM callsign genealogy
Currently held by MUIR, JEFFREY S
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 W6JSM's current licensee, walking backwards.
- MUIR, JEFFREY SCAgranted 1996-11-05cancelled 2002-08-03
Successor callsigns
Callsigns held now by people who previously held W6JSM.
- MUIR, JEFFREY SCAgranted 2018-11-24