Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1SFR callsign genealogy
Currently held by ROBERTS, STEPHEN F
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 W1SFR's current licensee, walking backwards.
- ROBERTS, STEPHEN FVTgranted 2012-02-27cancelled 2012-04-03
Successor callsigns
Callsigns held now by people who previously held W1SFR.
No current licensee on record previously held this callsign.