Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1GTO callsign genealogy
Currently held by WARING, MARK R
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 W1GTO's current licensee, walking backwards.
- WARING, MARK RFLgranted 1996-08-07cancelled 1999-12-03
- KF4KXHno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held W1GTO.
No current licensee on record previously held this callsign.