Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4SF callsign genealogy
Currently held by Rose, Paul N
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 W4SF's current licensee, walking backwards.
- Rose, Paul NCAgranted 2023-11-21cancelled 2024-01-09
Successor callsigns
Callsigns held now by people who previously held W4SF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4SF, oldest first.
- Pringle, John K FL2012-04-03 → cancelled 2021-12-21
- Rose, Paul N CA2024-01-09 active