Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WF4USN callsign genealogy
Currently held by Shaffield, Lawrence E
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 WF4USN's current licensee, walking backwards.
- Shaffield, Lawrence EALgranted 2019-10-07cancelled 2019-11-22
Successor callsigns
Callsigns held now by people who previously held WF4USN.
No current licensee on record previously held this callsign.