Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KW1R callsign genealogy
Currently held by LO GRASSO, ROBERT C
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 KW1R's current licensee, walking backwards.
- Townsend, Benjamin LCTgranted 2007-11-28cancelled 2009-12-08
Successor callsigns
Callsigns held now by people who previously held KW1R.
- LO GRASSO, ROBERT CCAgranted 2007-10-10cancelled 2011-03-15
All historical holders
Every license row we've seen with the callsign KW1R, oldest first.
- GAVITT SR, MERLE E FL1995-07-11 → cancelled 2006-01-26
- LO GRASSO, ROBERT C CA2006-04-25 → cancelled 2007-10-10
- Townsend, Benjamin L CT2019-09-17 active