Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9SJP callsign genealogy
Currently held by Patrow, Steven J
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 W9SJP's current licensee, walking backwards.
- Patrow, Steven JWIgranted 2020-11-13cancelled 2020-12-29
Successor callsigns
Callsigns held now by people who previously held W9SJP.
No current licensee on record previously held this callsign.