Confidence: Medium · Source: FCC ULS · As of 2026-09-15
K7RWG callsign genealogy
Currently held by BIGELOW, TOM H
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 K7RWG's current licensee, walking backwards.
- Grimm, Richard WWAgranted 2009-04-24cancelled 2013-12-17
Successor callsigns
Callsigns held now by people who previously held K7RWG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7RWG, oldest first.
- BIGELOW, TOM H WA1997-02-03 → cancelled 2009-02-04
- Grimm, Richard W ID2013-12-17 → cancelled 2026-03-07