Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1GRO callsign genealogy
Currently held by Groleau, Richard 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 W1GRO's current licensee, walking backwards.
- Groleau, Richard RMAgranted 2005-03-21cancelled 2005-06-01
Successor callsigns
Callsigns held now by people who previously held W1GRO.
No current licensee on record previously held this callsign.