Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7SFR callsign genealogy
Currently held by NORTHWEST AMATEUR RADIO COMMUNICATIONS SYS
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 W7SFR's current licensee, walking backwards.
- Lawrence, Russell AORgranted 2013-11-12cancelled 2013-12-03
Successor callsigns
Callsigns held now by people who previously held W7SFR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7SFR, oldest first.
- NORTHWEST AMATEUR RADIO COMMUNICATIONS SYS WA1997-01-13 → cancelled 2000-10-06
- Lawrence, Russell A OR2023-10-18 active