Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1NGS callsign genealogy
Currently held by GRILLO, DOMINIC
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 W1NGS's current licensee, walking backwards.
- KEEFE JR, THOMAS CMAgranted 2006-12-08cancelled 2008-01-29
Successor callsigns
Callsigns held now by people who previously held W1NGS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1NGS, oldest first.
- GRILLO, DOMINIC MA1996-01-17 → cancelled 1998-07-05
- KEEFE JR, THOMAS C MA2017-11-09 active