Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4ASX callsign genealogy
Currently held by SHERIN, ROBERT M
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 W4ASX's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held W4ASX.
- SHERIN, ROBERT MFLgranted 2020-10-06