Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1JSR callsign genealogy
Currently held by Redfield III, James 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 W1JSR's current licensee, walking backwards.
- Redfield III, James SMAgranted 2001-03-23cancelled 2001-04-14
Successor callsigns
Callsigns held now by people who previously held W1JSR.
No current licensee on record previously held this callsign.